| Adopting Agency | BSC | BSC-CG | SFM | HCD | DSA | OSHPD | BSCC | DPH | AGR | DWR | CEC | CA | SL | SLC | |||||||
| 1 | 2 | 1-AC | AC | SS | SS/CC | 1 | 2 | 3 | 4 | ||||||||||||
| Adopt Entire Chapter | X | X | X | ||||||||||||||||||
| Adopt Entire Chapter as amended (amended sections listed below) | X | X | X | X | X |
X | X | ||||||||||||||
| Adopt only those sections that are listed below | |||||||||||||||||||||
| Chapter/Section | |||||||||||||||||||||
| 701.2(2) (a) | X | X | |||||||||||||||||||
| 701.2(2) (b) |
X | X | X | X | |||||||||||||||||
| Table 702.1 | X | ||||||||||||||||||||
| 705.1.2 | X | X | |||||||||||||||||||
| 705.5.2 | X | X | |||||||||||||||||||
| 705.8.4 | X | X | |||||||||||||||||||
| 710.3 | X | X | |||||||||||||||||||
| 710.3.1 | X | X | |||||||||||||||||||
| 713.4 | X | ||||||||||||||||||||
| 717.2 | X | ||||||||||||||||||||
| 724.0 - 724.2 | X | ||||||||||||||||||||
| 725.0 | X | ||||||||||||||||||||
| 726.0 - 726.2 | X | ||||||||||||||||||||
| 727.0 - 721.1(a) (b) | X | ||||||||||||||||||||
The Office of the State Fire Marshal's adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
This chapter shall govern the materials,
design, and installation of sanitary drainage systems
and building sewers.
Materials for drainage piping shall
be in accordance with one of the referenced standards in
Table 701.2 except that:
* For building-sewer applications.
- No galvanized wrought-iron or galvanized steel pipe shall be used underground and shall be kept not less than 6 inches (152 mm) aboveground.
- ABS and PVC DWV piping installations shall be
installed in accordance with applicable standards referenced
in Table 1701.1, this code, and the California
Building Code. Except for individual single-family
dwelling units, materials exposed within ducts or
plenums shall have a flame-spread index of not more
than 25 and a smoke-developed index of not more than
50, where tested in accordance with ASTM E84 or UL
723.
- [HCD 1 & HCD 2] ABS and PVC installations are limited to not more than two stories of areas of residential accommodation.
- [OSHPD 1, 2, 3 & 4] ABS and PVC installations are not allowed.
- No vitrified clay pipe or fittings shall be used aboveground or where pressurized by a pump or ejector. They shall be kept not less than 12 inches (305 mm) belowground.
- Copper or copper alloy tube for drainage and vent piping shall have a weight of not less than that of copper or copper alloy drainage tube type DWV.
- Stainless steel 304 pipe and fittings shall not be installed underground and shall be kept not less than 6 inches (152 mm) aboveground.
- Cast-iron soil pipe and fittings shall be listed and tested in accordance with standards referenced in Table 1701.1. Such pipe and fittings shall be marked with the country of origin and identification of the original manufacturer in addition to markings required by referenced standards.
| MATERIAL | UNDERGROUND DRAIN, WASTE, VENT PIPE AND FITTINGS |
ABOVEGROUND DRAIN, WASTE, VENT PIPE AND FITTINGS |
BUILDING SEWER PIPE AND FITTINGS |
REFERENCED STANDARD(S) PIPE |
REFERENCED STANDARD(S) FITTINGS |
| ABS (Schedule 40) | X | X | X | ASTM D2661, ASTMD2680* |
ASTM D2661, ASTM D2680* |
| Cast-Iron | X | X | X | ASTM A74, ASTM A888, CISPI 301 |
ASME B16.12, ASTM A74, ASTM A888, CISPI 301 |
| Co-Extruded ABS (Schedule 40) |
X | X | X | ASTM F628 | ASTM D2661, ASTM D2680* |
| Co-Extruded Composite (Schedule 40) |
X | X | X | ASTM F1488 | ASTM D2661, ASTM D2665, ASTM F794*, ASTM F1866 |
| Co-Extruded-PVC (Schedule 40) |
X | X | X | ASTM F891 | ASTM D2665, ASTM F794*, ASTM F1866 |
| Copper and Copper Alloys (Type DWV) |
X | X | X | ASTM B43, ASTM B75, ASTM B251, ASTM B302, ASTM B306 |
ASME B16.23, ASME 816.29 |
| Galvanized Malleable Iron | - | X | - | - | ASME B16.3 |
| Galvanized Steel | - | X | - | ASTM A53 | - |
| Polyethylene | - | - | X | ASTM F714 | - |
| PVC (Schedule 40) | X | X | X | ASTM D1785, ASTM D2665, ASTM F794* |
ASTM D2665, ASTM F794*, ASTM F1866 |
| Stainless Steel 304 | - | X | - | ASME A112.3.1 | ASME A112.3.1 |
| Stainless Steel 316L | X | X | X | ASME A112.3.1 | ASME A112.3.1 |
| Vitrified Clay (Extra strength) |
- | - | X | ASTM C700 | ASTM C700 |
The threads of drainage fittings shall
be tapped so as to allow 1/4 inch per foot (20.8 mm/m)
grade.
Fittings used for drainage shall be of the drainage type, have a smooth interior water-way, and
be constructed so as to allow 1/4 inch per foot (20.8
mm/m) grade.
Continuous wastes and fixture
tailpieces shall be constructed from the materials specified
in Section 701.2 for drainage piping, provided, however,
that such connections where exposed or accessible shall be
permitted to be of seamless drawn brass not less than No.
20 B & S Gauge (0.032 inches) (0.8 mm).
(See Table 1701.1) Sheet lead shall comply with the following:
- For safe pans - not less than 4 pounds per square foot (lb/ft2 (19 kg/m2) or 1/16 of an inch (1.6 mm) thick.
- For flashings or vent terminals - not less than 3 lb/ft2 (15 kg/m2) or 0.0472 of an inch (1.1989 mm) thick.
- Lead bends and lead traps shall be not less than 1/8 of an inch (3.2 mm) in wall thickness.
Caulking ferrules shall be manufactured from copper or copper alloy and shall be in accordance with Table 701.6.
For SI units: 1 inch = 25 mm, 1 pound = 0.453 kg, 1 ounce = 0.02834 kg
| PIPE SIZE (inches) |
INSIDE DIAMETER (inches) |
LENGTH (inches) |
MINIMUM WEIGHT EACH | |
| pounds | ounces | |||
| 2 | 21/4 | 41/2 | 1 | 0 |
| 3 | 31/4 | 41/2 | 1 | 12 |
| 4 | 41/4 | 41/2 | 2 | 8 |
Soldering bushings shall be of copper or copper alloy and shall be in accordance with Table 701.7.
For SI units: 1 inch = 25 mm, 1 pound = 0.453 kg, 1 ounce = 0.02834 kg
| PIPE SIZE (inches) |
MINIMUM WEIGHT EACH |
PIPE SIZE (inches) |
MINIMUM WEIGHT EACH |
||
| pounds | ounces | pounds | ounces | ||
| 11/4 | 0 | 6 | 21/2 | 1 | 6 |
| 11/2 | 0 | 8 | 3 | 2 | 0 |
| 2 | 0 | 14 | 4 | 3 | 8 |
The unit equivalent of plumbing fixtures
shown in Table 702.1 shall be based on the size of the trap
required, and the unit equivalent of fixtures and devices not
shown in Table 702.1 shall be based on the size of trap or
trap arm.
Maximum drainage fixture units for a fixture trap and trap arm loadings for sizes up to 4 inches (100 mm) shall be in accordance with Table 702.2(1).
For SI units: 1 inch = 25 mm
Notes:
3 For refrigerators, coffee urns, water stations, and similar low demands.
4 For commercial sinks, dishwashers, and similar moderate or heavy demands.
For SI Units: 1 inch = 25 mm
* Exception: On self-service laundries.
Maximum drainage fixture units for a fixture trap and trap arm loadings for sizes up to 4 inches (100 mm) shall be in accordance with Table 702.2(1).
| PLUMBING APPLIANCES, APPURTENANCES, OR FIXTURES | MINIMUM SIZE TRAP AND TRAP ARM7 (inches) |
PRIVATE | PUBLIC | ASSEMBLY8 |
| Bathtub or Combination Bath/Shower | 11/2 | 2.0 | 2.0 | - |
| Bidet | 11/4 | 1.0 | - | - |
| Bidet | 11/2 | 2..0 | - | - |
| Clothes Washer, domestic, standpipe5 | 2 | 3.0 | 3.0 | 3.0 |
| Dental Unit, cuspidor | 11/4 | - | 1.0 | 1.0 |
| Dishwasher, domestic, with independent drain2 | 11/2 | 2.0 | 2.0 | 2.0 |
| Drinking Fountain or Water Cooler | 11/4 | 0.5 | 0.5 | 1.0 |
| Food Waste Disposer, commercial | 2 | - | 3.0 | 3.0 |
| Floor Drain, emergency | 2 | - | 0.0 | 0.0 |
| Floor Drain (for additional sizes see Section 702.0) | 2 | 2.0 | 2.0 | 2.0 |
| Shower, single-head trap | 2 | 2.0 | 2.0 | 2.0 |
| Multi-head, each additional | 2 | 1.0 | 1.0 | 1.0 |
| Lavatory | 11/4 | 1.0 | 1.0 | 1.0 |
| Lavatories in sets | 11/2 | 2.0 | 2.0 | 2.0 |
| Washfountain | 11/2 | - | 2.0 | 2.0 |
| Washfountain | 2 | - | 3.0 | 3.0 |
| Mobile home or Manufactured Home, trap9 | 3 | 6.0 | - | - |
| Receptor, indirect waste1,3 | 11/2 | See footnote1,3 | ||
| Receptor, indirect waste1,4 | 2 | See footnote1,4 | ||
| Receptor, indirect waste1 | 3 | See footnote1 | ||
| Sinks | - | - | - | - |
Bar |
11/2 | 1.0 | - | - |
Bar2 |
11/2 | - | 2.0 | 2.0 |
Clinical |
3 | - | 6.0 | 6.0 |
Commercial with food waste2 |
11/2 | - | 3.0 | 3.0 |
Exam Room |
11/2 | - | 1.0 | - |
Special Purpose2 |
11/2 | 2.0 | 3.0 | 3.0 |
Special Purpose |
2 | 3.0 | 4.0 | 4.0 |
Special Purpose |
3 | - | 6.0 | 6.0 |
Kitchen, domestic2 (with or without food waste disposer, dishwasher, or both) |
11/2 | 2.0 | 2.0 | - |
Laundry2 (with or without discharge from a clothes washer) |
11/2 | 2.0 | 2.0 | 2.0 |
Service or Mop Basin |
2 | - | 3.0 | 3.0 |
Service or Mop Basin |
3 | - | 3.0 | 3.0 |
Service, flushing rim |
3 | - | 6.0 | 6.0 |
Wash, each set of faucets |
- | - | 2.0 | 2.0 |
| Urinal, hybrid | 2 | 1.0 | 1.0 | 1.0 |
| Urinal, integral trap 1.0 GPF2 | 2 | 2.0 | 2.0 | 5.0 |
| Urinal, integral trap greater than 1.0 GPF | 2 | 2.0 | 2.0 | 6.0 |
| Urinal, exposed trap2 | 11/2 | 2.0 | 2.0 | 5.0 |
| Water Closet, 1.6 GPF Gravity Tank6 | 3 | 3.0 | 4.0 | 6.0 |
| Water Closet, 1.6 GPF Flushometer Tank6 | 3 | 3.0 | 4.0 | 6.0 |
| Water Closet, 1.6 GPF Flushometer Valve6 | 3 | 3.0 | 4.0 | 6.0 |
| Water Closet, greater than 1.6 GPF Gravity Tank6 | 3 | 4.0 | 6.0 | 8.0 |
| Water Closet, greater than 1.6 GPF Flushometer Valve6 | 3 | 4.0 | 6.0 | 8.0 |
Notes:
1 Indirect waste receptors shall be sized based on the total drainage capacity of the fixtures that drain therein to, in accordance with Table 702.2(2).
2 Provide a 2 inch (50 mm) minimum drain.3 For refrigerators, coffee urns, water stations, and similar low demands.
4 For commercial sinks, dishwashers, and similar moderate or heavy demands.
5 Buildings having a clothes-washing area with clothes washers in a battery of three or more clothes washers shall be rated at 6 fixture units each for
purposes of sizing common horizontal and vertical drainage piping.
6 Water closets shall be computed as 6 fixture units where determining septic tank sizes based on Appendix H of this code.
7 Trap sizes shall not be increased to the point where the fixture discharge is capable of being inadequate to maintain their self-scouring properties.
8 Assembly [Public Use (see Table 422.1)].9 For drainage fixture unit values related to lots within mobilehome parks in all parts of the State of California, see California Code of Regulations, Title 25, Division 1, Chapter 2, Article 5, Section 1268. For drainage fixture unit values related to lots within special occupancy parks in all parts of the State of California, see California Code of Regulations, Title 25, Division 1, Chapter 2.2, Article 5, Section 2268.
| SIZE OF TRAP AND TRAP ARM (inches) |
DRAINAGE FIXTURE UNIT VALUES (DFU) |
| 11/4 | 1 unit |
| 11/2 | 3 units |
| 2 | 4 units |
| 3 | 6 units |
| 4 | 8 units |
* Exception: On self-service laundries.
Drainage fixture units for intermittent
flow into the drainage system shall be computed on
the rated discharge capacity in gallons per minute (gpm)
(L/s) in accordance with Table 702.2(2).
For SI units: 1 gallon per minute = 0.06L/s
| GPM | FIXTURE UNITS |
| Up to 71/2 | Equals 1 Fixture Unit |
| Greater than 71/2 to 15 | Equals 2 Fixture Units |
| Greater than 15 to 30 | Equals 4 Fixture Units |
| Greater than 30 to 50 | Equals 6 Fixture Units |
* Discharge capacity exceeding 50 gallons per minute (3.15 L/s) shall be
determined by the Authority Having Jurisdiction.
For a continuous flow into a
drainage system, such as from a pump, sump ejector, air
conditioning equipment, or similar device, 2 fixture units shall
be equal to each gallon per minute (gpm) (L/s) of flow.
The minimum sizes of vertical, horizontal,
or both drainage piping shall be determined from the
total of fixture units connected thereto, and additionally, in
the case of vertical drainage pipes, in accordance with their
length.
Table 703.2
shows the maximum number of fixture units allowed on a
vertical or horizontal drainage pipe, building drain, or
building sewer of a given size; the maximum number of
fixture units allowed on a branch interval of a given size;
and the maximum length (in feet and meters) of a vertical
drainage pipe of a given size.
For SI units: 1 inch = 25 mm, 1 foot = 304.8 mm
Notes:
1 Excluding trap arm.
2 Except sinks, urinals, and dishwashers - exceeding 1 fixture unit.
3 Except six-unit traps or water closets.
| SIZE OF PIPE (inches) | 11/4 | 11/2 | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 |
| Maximum Units Drainage Piping1 Vertical Horizontal |
1 1 |
22 1 |
163 83 |
484 354 |
256 2165 |
600 4285 |
1380 7205 |
3600 26405 |
5600 46805 |
8400 82005 |
| Maximum Length Drainage Piping Vertical, (feet) Horizontal (unlimited) |
45 |
65 |
85 |
212 |
300 |
390 |
510 |
750 |
- | - |
| Vent Piping Horizontal and Vertical6 Maximum Units Maximum Lengths, (feet) |
1 45 |
83 60 |
24 120 |
84 212 |
256 300 |
600 390 |
1380 510 |
3600 750 |
- | - |
Notes:
1 Excluding trap arm.
2 Except sinks, urinals, and dishwashers - exceeding 1 fixture unit.
3 Except six-unit traps or water closets.
4 Only four water closets or six-unit traps allowed on a vertical pipe or stack; and not to exceed three water closets or six-unit traps on a horizontal branch
or drain.
5 Based on 1/4 inch per foot (20.8 mm/m) slope. For 1/8 of an inch per foot (10.4 mm/m) slope, multiply horizontal fixture units by a factor of 0.8.
6 The diameter of an individual vent shall be not less than 11/4 inches (32 mm) nor less than one-half the diameter of the drain to which it is connected.
Fixture unit load values for drainage and vent piping shall be computed from Table 702.1 and Table 702.2(2). Not to exceed one-third of the total
permitted length of a vent shall be permitted to be installed in a horizontal position. Where vents are increased one pipe size for their entire length, the
maximum length limitations specified in this table do not apply. This table is in accordance with the requirements of Section 901.3.
For alternate method of
sizing drainage piping, see Appendix C.
Drainage piping shall be provided
with approved inlet fittings for fixture connections, correctly located according to the size and type of fixture
proposed to be connected.
Pot sinks, scullery sinks, dishwashing
sinks, silverware sinks, and other similar fixtures shall be connected directly to the drainage system. A floor
drain shall be provided adjacent to the fixture, and the
fixture shall be connected on the sewer side of the floor
drain trap, provided that no other drainage line is connected
between the floor drain waste connection and the fixture
drain. The fixture and floor drain shall be trapped and
vented in accordance with this code.
Joining methods for ABS plastic pipe and fittings
shall be installed in accordance with the manufacturer's
installation instructions and shall comply with Section
705.1.1 through Section 705.1.3.
Mechanical joints shall be
designed to provide a permanent seal and shall be of
the mechanical or push-on joint. The push-on joint
shall include an elastomeric gasket in accordance with
ASTM D3212 and shall provide a compressive force
against the spigot and socket after assembly to provide
a permanent seal.
Solvent cement joints
for ABS pipe and fittings shall be clean from dirt and
moisture. Pipe shall be cut square and shall be
deburred. Where surfaces to be joined are cleaned and
free of dirt, moisture, oil, and other foreign material,
solvent cement in accordance with ASTM D2235 shall
be applied to all joint surfaces. Joints shall be made
while both the inside socket surface and outside surface
of pipe are wet with solvent cement. Hold joint in place
and undisturbed for 1 minute after assembly. [HCD 1 & HCD 2] Plastic pipe and fittings joined with solvent
cement shall utilize Low VOC primer(s), if a primer is
required, and Low VOC cement(s) as defined in
Section 214.0.
Threads shall comply with
ASME B1.20.1. A minimum of Schedule 80 shall be
permitted to be threaded. Molded threads on adapter
fittings for transition to threaded joints shall be
permitted. Thread sealant compound shall be applied to
male threads, insoluble in water, and nontoxic. The
joint between the pipe and transition fitting shall be of
the solvent cement type. Caution shall be used during
assembly to prevent over tightening of the ABS
components once the thread sealant compound has
been applied.
Joining methods for cast-iron pipe and fittings shall be installed in accordance with the manufacturer's installation instructions and shall comply with Section 705.2.1 or Section 705.2.2.
Caulked joints shall be firmly
packed with oakum or hemp and filled with molten
lead to a depth of not less than 1 inch (25.4 mm) in one
continuous pour. The lead shall be caulked thoroughly
at the inside and outside edges of the joint. After
caulking, the finished joint shall not exceed 1/8 of an
inch (3.2 mm) below the rim of the hub. No paint,
varnish, or other coatings shall be permitted on the
joining material until after the joint has been tested and
approved.
Mechanical joints for cast-iron pipe and
fittings shall be of the elastomeric compression type or
mechanical joint couplings. Compression type joints
with an elastomeric gasket for cast-iron hub and spigot
pipe shall comply with ASTM C564 and be tested in
accordance with ASTM C1563. Hub and spigot shall
be clean and free of dirt, mud, sand, and foreign materials.
Cut pipe shall be free from sharp edges. Fold and
insert gasket into hub. Lubricate the joint following
manufacturer's instructions. Insert spigot into hub until
the spigot end of the pipe bottom out in the hub. Use
the same procedure for the installation of fittings.
A mechanical joint shielded coupling type for hubless cast-iron pipe and fittings shall have a metallic shield in accordance with ASTM A1056, ASTM C1277, ASTM C1540, or CISPI 310. The elastomeric gasket shall comply with ASTM C564. Hubless cast-iron pipe and fittings shall be clean and free of dirt, mud, sand, and foreign materials. Cut pipe shall be free from sharp edges. Gasket shall be placed on the end of the pipe or fitting and the stainless steel shield and clamp assembly on the end of the other pipe or fitting. Pipe or fittings shall be seated against the center stop inside the elastomeric sleeve. Slide the stainless steel shield and clamp assembly into position centered over the gasket and tighten. Bands shall be tightened using an approved calibrated torque wrench specifically set by the manufacturer of the couplings.
A mechanical joint shielded coupling type for hubless cast-iron pipe and fittings shall have a metallic shield in accordance with ASTM A1056, ASTM C1277, ASTM C1540, or CISPI 310. The elastomeric gasket shall comply with ASTM C564. Hubless cast-iron pipe and fittings shall be clean and free of dirt, mud, sand, and foreign materials. Cut pipe shall be free from sharp edges. Gasket shall be placed on the end of the pipe or fitting and the stainless steel shield and clamp assembly on the end of the other pipe or fitting. Pipe or fittings shall be seated against the center stop inside the elastomeric sleeve. Slide the stainless steel shield and clamp assembly into position centered over the gasket and tighten. Bands shall be tightened using an approved calibrated torque wrench specifically set by the manufacturer of the couplings.
Joining methods for copper or copper alloy pipe and fittings shall be installed in accordance with the manufacturer's
installation instructions and shall comply with
Section 705.3.1 through Section 705.3.4.
Brazed joints between copper or copper alloy pipe and fittings shall be made with brazing alloys having a liquid temperature above
1000°F (538°C). The joint surfaces to be brazed shall
be cleaned bright by either manual or mechanical
means. Piping shall be cut square and reamed to full
inside diameter. Brazing flux shall be applied to the
joint surfaces where required by manufacturer's
recommendation. Brazing filler metal in accordance
with AWS A5.8 shall be applied at the point where the
pipe or tubing enters the socket of the fitting.
Mechanical joints in
copper or copper alloy piping shall be made with a
mechanical coupling with grooved end piping or
approved joint designed for the specific application.
Soldered joints between
copper or copper alloy pipe and fittings shall be made
in accordance with ASTM B828 with the following
sequence of joint preparation and operation as follows:
measuring and cutting, reaming, cleaning, fluxing,
assembly and support, heating, applying the solder,
cooling, and cleaning. Pipe shall be cut square and
reamed to the full inside diameter including the
removal of burrs on the outside of the pipe. Surfaces to
be joined shall be cleaned bright by manual or mechanical
means. Flux shall be applied to pipe and fittings
and shall be in accordance with ASTM B813, and shall
become noncorrosive and nontoxic after soldering.
Insert pipe into the base of the fitting and remove
excess flux. Pipe and fitting shall be supported to
ensure a uniform capillary space around the joint. Heat
shall be applied using an air or fuel torch with the
flame perpendicular to the pipe using acetylene or an
LP gas. Preheating shall depend on the size of the joint.
The flame shall be moved to the fitting cup and alternate
between the pipe and fitting. Solder in accordance
with ASTM B32 shall be applied to the joint surfaces
until capillary action draws the molten solder into the
cup. Joint surfaces shall not be disturbed until cool and
any remaining flux residue shall be cleaned.
Threaded joints for copper
or copper alloy pipe shall be made with pipe threads in
accordance with ASME B1.20.1. Thread sealant tape
or compound shall be applied only on male threads,
and such material shall be approved types, insoluble in
water, and nontoxic.
Joining methods
for galvanized steel pipe and fittings shall be installed in
accordance with the manufacturer's installation instructions
and shall comply with Section 705.4.1 or Section 705.4.2.
Mechanical joints shall be
made with an elastomeric gasket.
Joining methods for PVC plastic pipe
and fittings shall be installed in accordance with the manufacturer's
installation instructions and shall comply with
Section 705.5.1 through Section 705.5.3.
Mechanical joints shall be
designed to provide a permanent seal and shall be of
the mechanical or push-on joint type. The push-on joint
shall include an elastomeric gasket in accordance with
ASTM D3212 and shall provide a compressive force
against the spigot and socket after assembly to provide
a permanent seal.
Solvent cement joints for PVC pipe and fittings shall be clean from dirt and
moisture. Pipe shall be cut square and pipe shall be
deburred. Where surfaces to be joined are cleaned and
free of dirt, moisture, oil, and other foreign material,
apply primer purple in color in accordance with ASTM
F656. Primer shall be applied until the surface of the pipe
and fitting is softened. Solvent cements in accordance
with ASTM D2564 shall be applied to all joint surfaces.
Joints shall be made while both the inside socket surface
and outside surface of pipe are wet with solvent cement.
Hold joint in place and undisturbed for 1 minute after
assembly. [HCD 1 & HCD 2] Plastic pipe and fittings
joined with solvent cement shall utilize Low VOC
primer(s), if a primer is required, and Low VOC
cement(s) as defined in Section 214.0.
Threads shall comply with ASME B1.20.1. A minimum of Schedule 80 shall be
permitted to be threaded. Molded threads on adapter
fittings for transition to threaded joints shall be
permitted. Thread sealant compound that is compatible
with the pipe and fitting, insoluble in water, and
nontoxic shall be applied to male threads. The joint
between the pipe and transition fitting shall be of the
solvent cement type. Caution shall be used during
assembly to prevent over tightening of the PVC
components once the thread sealant has been applied.
Female PVC threaded fittings shall be used with plastic
male threads only.
Joining methods for stainless steel pipe and fittings shall be installed in accordance
with the manufacturer's installation instructions and
shall comply with Section 705.6.1 or Section 705.6.2.
Mechanical joints between stainless steel pipe and fittings shall be of the compression,
grooved coupling, hydraulic pressed fittings, or
flanged.
Welded joints between stainless steel pipe and fittings shall comply with ASME
A112.3.1 and shall be welded autogenously. Pipe shall
be cleaned, free of scale and contaminating particles.
Pipe shall be cut with a combination cutting and
beveling tool that provides a square cut, and free of
burrs. Mineral oil lubricant shall be used during the
cutting and beveling process.
Joining methods for vitrified clay pipe and fittings shall be installed in accordance with the manufacturer's installation instructions and shall comply with Section 705.7.1.
Mechanical joints shall be designed to provide a permanent seal and shall be of
the mechanical or push-on joint type. The push-on joint
shall include an elastomeric gasket in accordance with
ASTM C425 and shall provide a compressive force
against the spigot and socket after assembly to provide
a permanent seal.
Special joints shall comply with
Section 705.8.1 through Section 705.8.4.
In fixture drains and traps, slip
joints of approved materials shall be permitted to be
used in accordance with their approvals.
Expansion joints shall be
accessible, except where in vent piping or drainage
stacks, and shall be permitted to be used where necessary
to provide for expansion and contraction of the
pipes.
Copper or copper alloy ground joint, flared, or
ferrule-type connections that allow adjustment of
tubing, but provide a rigid joint where made up, shall
not be considered as slip joints.
A solvent cement transition joint between ABS and PVC building drain and building sewer shall be made using listed transition solvent cement in accordance with ASTM D3138. [HCD 1 & HCD 2] Plastic pipe and fittings joined with
solvent cement shall utilize Low VOC primer(s), if a
primer is required, and Low VOC cement(s) as defined
in Section 214.0.
Joints
between various materials shall be installed in accordance
with the manufacturer's installation instructions and shall
comply with Section 705.9.1 through Section 705.9.4.
Mechanical couplings used to join different materials shall
be in accordance with ASTM C1173 for belowground use,
ASTM C1460 for aboveground use, or ASTM C1461 for
aboveground and belowground use.
Joints from copper or copper alloy pipe or
tubing to cast-iron pipe shall be made with a listed
compression type joint or copper alloy ferrule. The
copper or copper alloy pipe or tubing shall be soldered
or brazed to the ferrule and the ferrule shall be joined
to the cast-iron hub by a compression or caulked joint.
Joints from copper or copper
alloy pipe or tubing to threaded pipe shall be made by
the use of a listed copper alloy adapter or dielectric
fitting. The joint between the copper or copper alloy
pipe and the fitting shall be a soldered or brazed, and
the connection between the threaded and the fittings
shall be made with a standard pipe size threaded joint.
Where connecting stainless steel pipe to other types of
piping, listed mechanical joints of the compression
type and listed for the specific transition intended shall
be used.
Horizontal drainage lines,
connecting with a vertical stack, shall enter through 45
degree (0.79 rad) wye branches, 60 degree (1.05 rad) wye
branches, combination wye and one-eighth bend branches,
sanitary tee or sanitary tapped tee branches, or other
approved fittings of equivalent sweep. No fitting having
more than one inlet at the same level shall be used unless
such fitting is constructed so that the discharge from one
inlet cannot readily enter any other inlet. Double sanitary
tees shall be permitted to be used where the barrel of the
fitting is not less than two pipe sizes larger than the largest
inlet, (pipe sizes recognized for this purpose are 2 inches, 21/2 inches, 3 inches, 31/2 inches, 4 inches, 41/2 inches, 5
inches, 6 inches, etc.) (50 mm, 65 mm, 80 mm, 90 mm, 100
mm, 115 mm, 125 mm, 150 mm, etc.).
Vertical drainage lines
connecting with horizontal drainage lines shall enter
through 45 degree (0.79 rad) wye branches, combination
wye and one-eighth bend branches, or other approved
fittings of equivalent sweep. Branches or offsets of 60
degrees (1.05 rad) shall be permitted to be used where
installed in a true vertical position.
Each cleanout fitting for cast-iron pipe shall
consist of a cast-iron or copper alloy body and an approved plug. Each cleanout for galvanized wrought-iron, galvanized
steel, copper, or copper alloy pipe shall consist of a plug as specified in Table 707.1, or a standard weight
copper alloy cap, or an approved ABS or PVC plastic plug, or an approved stainless steel cleanout or plug. Plugs shall
have raised square heads or approved countersunk rectangular
slots.
For SI units: 1 inch = 25 mm
| SIZE OF PIPE (inches) |
SIZE OF CLEANOUT (inches) |
THREADS (per inches) |
| 11/2 | 11/2 | 111/2 |
| 2 | 11/2 | 111/2 |
| 21/2 | 21/2 | 8 |
| 3 | 21/2 | 8 |
| 4 & larger | 31/2 | 8 |
Each cleanout fitting and each cleanout
plug or cap shall be of an approved type.
Cleanouts shall be
designed to be watertight and gastight.
Each horizontal drainage pipe shall be
provided with a cleanout at its upper terminal, and each run
of piping. that is more than 100 feet (30480 mm) in total
developed length, shall be provided with a clean out for each
100 feet (30480 mm), or fraction thereof, in length of such
piping. An additional cleanout shall be provided in a drainage
line for each aggregate horizontal change in direction
exceeding 135 degrees (2.36 rad). A cleanout shall be
installed above the fixture connection fitting, serving each
urinal, regardless of the location of the urinal in the building.
Exceptions:
Exceptions:
- Cleanouts shall be permitted to be omitted on a horizontal drain line less than 5 feet (1524 mm) in length unless such line is serving sinks or urinals.
- Cleanouts shall be permitted to be omitted on a horizontal drainage pipe installed on a slope of 72 degrees (1.26 rad) or less from the vertical angle (one-fifth bend).
- Excepting the building drain, its horizontal branches, and urinals, a cleanout shall not be required on a pipe or piping that is above the floor level of the lowest floor of the building.
- An approved type of two-way cleanout fitting, installed inside the building wall near the connection between the building drain and the building sewer or installed outside of a building at the lower end of a building drain and extended to grade, shall be permitted to be substituted for an upper terminal clean out.
Each cleanout extension shall be considered
as drainage piping and each 90 degree (1.57 rad)
cleanout extension shall be extended from a wye-type
fitting or other approved fitting of equivalent sweep.
Each cleanout for an interceptor shall be
outside of such interceptor.
Each cleanout, unless installed under an
approved cover plate, shall be above grade, readily accessible,
and so located as to serve the purpose for which it is
intended. Cleanouts located under cover plates shall be so
installed as to provide the clearances and accessibility
required by this section.
Each cleanout in piping 2 inches (50
mm) or less in size shall be so installed that there is a clearance of not less than 18 inches (457 mm) in front of the
cleanout. Cleanouts in piping exceeding 2 inches (50 mm) shall have a clearance of not less than 24 inches (610 mm)
in front of the clean out. Cleanouts in under-floor piping
shall be extended to or above the finished floor or shall be
extended outside the building where there is less than 18 inches (457 mm) vertical overall, allowing for obstructions
such as ducts, beams, and piping, and 30 inches of (762
mm) horizontal clearance from the means of access to such
cleanout. No under-floor cleanout shall be located
exceeding 5 feet (1524 mm) from an access door, trap door, or crawl hole.
Clean out fittings shall be not less in size
than those given in Table 707.1.
Countersunk cleanout plugs shall be installed where raised heads cause a
hazard.
Where a hubless blind plug is
used for a required cleanout, the complete coupling and
plug shall be accessible for removal or replacement.
Cleanouts for trap arms shall be
installed in accordance with Section 1002.3.
Horizontal drainage piping shall be run in
practical alignment and a uniform slope of not less than 1/4
inch per foot (20.8 mm/m) or 2 percent toward the point of
disposal provided that, where it is impractical due to the
depth of the street sewer, to the structural features, or to the
arrangement of a building or structure to obtain a slope of
1/4 inch per foot (20.8 mm/m) or 2 percent, such pipe or
piping 4 inches (100 mm) or larger in diameter shall be
permitted to have a slope of not less than 1/8 inch per foot
(10.4 mm/m) or 1 percent, where first approved by the
Authority Having Jurisdiction.
Where practicable, plumbing fixtures shall be drained to the public sewer or private sewage disposal system by gravity.
Fixtures installed on a floor
level that is lower than the next upstream manhole cover of
the public or private sewer shall be protected from backflow
of sewage by installing an approved type of backwater
valve. Fixtures on such floor level that are not below the
next upstream manhole cover shall not be required to be
protected by a backwater valve. Fixtures on floor levels
above such elevation shall not discharge through the backwater
valve. Cleanouts for drains that pass through a backwater
valve shall be clearly identified with a permanent
label stating "backwater valve downstream."
Drainage piping serving fixtures
that are located below the crown level of the main sewer
shall discharge into an approved watertight sump or
receiving tank, so located as to receive the sewage or
wastes by gravity. From such sump or receiving tank, the sewage or other liquid wastes shall be lifted and discharged
into the building drain or building sewer by approved ejectors,
pumps, or other equally efficient approved mechanical
devices.
A sewage ejector or
sewage pump receiving the discharge of water closets or
urinals:
- Shall have a discharge capacity of not less than 20 gpm (1.26 L/s).
- In single dwelling units, the ejector or pump shall be capable of passing a 11/2 inch (38 mm) diameter solid ball, and the discharge piping of each ejector or pump shall have a backwater valve and gate valve, and be not less than 2 inches (50 mm) in diameter.
- In other than single-dwelling units, the ejector or pump shall be capable of passing a 2 inch (50 mm) diameter solid ball, and the discharge piping of each ejector or pump shall have a backwater valve and gate valve, and be not less than 3 inches (80 mm) in diameter.
The discharge line from such ejector, pump, or other mechanical device shall be of
approved pressure rated material and be provided with an
accessible backwater or swing check valve and gate or ball
valve. Where the gravity drainage line to which such
discharge line connects is horizontal, the method of connection
shall be from the top through a wye branch fitting. The
gate or ball valve shall be located on the discharge side of
the backwater or check valve.
Gate or ball valves, where installed in drainage piping, shall be fullway type with working parts of corrosion-resistant metal. Sizes 4 inches (100 mm) or more in diameter shall have cast-iron bodies. and sizes less than 4 inches (100 mm), cast-iron or copper alloy bodies.
Gate or ball valves, where installed in drainage piping, shall be fullway type with working parts of corrosion-resistant metal. Sizes 4 inches (100 mm) or more in diameter shall have cast-iron bodies. and sizes less than 4 inches (100 mm), cast-iron or copper alloy bodies.
Building
drains or building sewers receiving discharge from a pump
or ejector shall be adequately sized to prevent overloading.
Two fixture units shall be allowed for each gallon per
minute (L/s) of flow.
Backwater valves, gate valves,
full way ball valves, unions, motors, compressors, air tanks,
and other mechanical devices required by this section shall
be located where they will be accessible for inspection and
repair and, unless continuously exposed, shall be enclosed
in a masonry pit fitted with an adequately sized removable
cover.
Backwater valves shall comply with ASME A112.14.1, and have bodies of cast-iron, plastic, copper alloy, or other approved materials; shall have noncorrosive bearings, seats, and self-aligning discs; and shall be constructed so as to ensure a positive mechanical seal. Such backwater valves shall remain open during periods of low flows to avoid screening of solids and shall not restrict capacities or cause excessive turbulence during peak loads. Unless otherwise listed, valve access covers shall be bolted type with gasket, and each valve shall bear the manufacturer's name cast into the body and the cover.
Backwater valves shall comply with ASME A112.14.1, and have bodies of cast-iron, plastic, copper alloy, or other approved materials; shall have noncorrosive bearings, seats, and self-aligning discs; and shall be constructed so as to ensure a positive mechanical seal. Such backwater valves shall remain open during periods of low flows to avoid screening of solids and shall not restrict capacities or cause excessive turbulence during peak loads. Unless otherwise listed, valve access covers shall be bolted type with gasket, and each valve shall bear the manufacturer's name cast into the body and the cover.
Sumps
and receiving tanks shall be watertight and shall be
constructed of concrete, metal, or other approved materials.
Where constructed of poured concrete, the walls and bottom
shall be adequately reinforced and designed to recognized
acceptable standards. Metal sumps or tanks shall be of such
thickness as to serve their intended purpose and shall be
treated internally and externally to resist corrosion.
Such sumps and receiving tanks shall be
automatically discharged and, where in a "public use" occupancy,
shall be provided with dual pumps or ejectors
arranged to function alternately in normal use and independently
in case of overload or mechanical failure. The pumps
shall have an audio and visual alarm, readily accessible,
that signals pump failure or an overload condition. The lowest inlet shall have a clearance of not less than 2 inches (51 mm) from the high-water or "starting" level of the
sump.
Sumps and receiving tanks shall be provided with substantial
covers having a bolt-and-gasket-type manhole or equivalent
opening to permit access for inspection, repairs, and
cleaning. The top shall be provided with a vent pipe that
shall extend separately through the roof or, where
permitted, be combined with other vent pipes. Such vent
shall be large enough to maintain atmospheric pressure
within the sump under normal operating conditions and, in
no case, shall be less in size than that required by Table
703.2 for the number and type of fixtures discharging into
the sump, nor less than 11/2 inches (40 mm) in diameter.
Where the foregoing requirements are met and the vent,
after leaving the sump, is combined with vents from
fixtures discharging into the sump, the size of the combined
vent need not exceed that required for the total number of
fixtures discharging into the sump. No vent from an air operating
sewage ejector shall combine with other vents.
Grinder pumps shall be permitted to be used.
The discharge piping shall
be sized in accordance with the manufacturer's installation
instructions and shall be not less than 11/4 inches
(32 mm) in diameter. A check valve and fullway-type shutoff valve shall be located within the discharge line.
Fixtures shall be permitted to discharge to a macerating toilet system or pumped waste system shall be
permitted as an alternate to a sewage pump system where approved by the Authority Having Jurisdiction. Such systems shall comply with ASME A112.3.4/CSA B45.9
and shall be installed in accordance with the manufacturer's
installation instructions.
The sump shall be watertight and gastight.
The discharge piping shall
be sized in accordance with manufacturer's instructions
and shall be not less than 3/4 of an inch (20 mm) in
diameter. The developed length of the discharge piping
shall not exceed the manufacturer's instructions. A
check valve and fullway-type shutoff valve shall be
located within the discharge line or internally within
the device.
The plumbing fixtures that
discharge into the macerating device shall be vented in
accordance with this code. The sump shall be vented in
accordance with the manufacturer's instructions and
such vent shall be permitted to connect to the fixture
venting.
Drainage connections shall not be made
into a drainage piping system within 8 feet (2438 mm) of a
vertical to horizontal change of direction of a stack
containing suds-producing fixtures. Bathtubs, laundries,
washing machine standpipes, kitchen sinks, and dishwashers
shall be considered suds-producing fixtures. Where
parallel vent stacks are required, they shall connect to the
drainage stack at a point 8 feet (2438 mm) above the lowest
point of the drainage stack.
Exceptions:
Exceptions:
- Single-family residences
- Stacks receiving the discharge from less than three stories of plumbing fixtures
The piping of the plumbing, drainage, and
venting systems shall be tested with water or air except that
plastic pipe shall not be tested with air. The Authority
Having Jurisdiction shall be permitted to require the
removal of cleanouts, etc., to ascertain whether the pressure
has reached all parts of the system. After the plumbing
fixtures have been set and their traps filled with water, they
shall be submitted to a final test.
The water test shall be applied to the
drainage and vent systems either in its entirety or in
sections. Where the test is applied to the entire system,
openings in the piping shall be tightly closed, except the
highest opening, and the system filled with water to point of
overflow. Where the system is tested in sections, each opening shall be tightly plugged, except the highest opening of the section under test, and each section shall be filled
with water, but no section shall be tested with less than a 10
foot head of water (30 kPa). In testing successive sections,
not less than the upper 10 feet (3048 mm) of the next
preceding section shall be tested, so that no joint or pipe in
the building (except the uppermost 10 feet (3048 mm) of the
system) shall have been submitted to a test of less than a 10
foot head of water (30 kPa). The water shall be kept in the
system, or in the portion under test, for not less than 15
minutes before inspection starts. The system shall then be
tight at all points.
The air test shall be made by attaching an
air compressor testing apparatus to a suitable opening and,
after closing all other inlets and outlets to the system,
forcing air into the system until there is a uniform gauge pressure of 5 pounds-force per square inch (psi) (34 kPa) or sufficient to balance a column of mercury 10 inches (34 kPa) in height. The pressure shall be held without introduction of additional air for a period of not less than 15 minutes.
A building in which plumbing
fixtures are installed and premises having drainage piping
thereon shall have a connection to a public or private
sewer, except as provided in Section 713.2, and Section 713.4.
Where no public sewer intended to serve a lot or premises is available in a
thoroughfare or right of way abutting such lot or premises,
drainage piping from a building or works shall be
connected to an approved private sewage disposal system.
Within the limits prescribed by
Section 713.4 hereof, the rearrangement or subdivision into
smaller parcels of a lot that abuts and is served by a public
sewer shall not be deemed cause to permit the construction
of a private sewage disposal system, and plumbing or
drainage systems on a smaller parcel or parcels shall
connect to the public sewer.
The public sewer shall be
permitted to be considered as not being available where
such public sewer or a building or an exterior drainage
facility connected thereto is located more than 200 feet (60960 mm) from a proposed building or exterior drainage
facility on a lot or premises that abuts and is served by such
public sewer.
[HCD 1] For residential occupancies, the public sewer may be considered as not being available by the Authority Having Jurisdiction.
[HCD 1] For residential occupancies, the public sewer may be considered as not being available by the Authority Having Jurisdiction.
No permit shall be issued for the installation,
alteration, or repair of a private sewage disposal system, or
part thereof, on a lot for which a connection with a public
sewer is available.
On every lot or premises hereafter connected to
a public sewer, plumbing and drainage systems or parts
thereof on such lot or premises shall be connected with such
public sewer.
In cities, counties, or both where the
installation of building sewers is under the jurisdiction of a
department other than the Authority Having Jurisdiction,
the provisions of this code relating to building sewers need
not apply.
Exception: Single-family dwellings and buildings or structures accessory thereto, existing and connected to an approved private sewage disposal system prior to the time of connecting the premises to the public sewer shall be permitted, where no hazard, nuisance, or insanitary condition is evidenced and written permission has been obtained from the Authority Having Jurisdiction, remain connected to such properly maintained private sewage disposal system where there is insufficient grade or fall to permit drainage to the sewer by gravity.
Exception: Single-family dwellings and buildings or structures accessory thereto, existing and connected to an approved private sewage disposal system prior to the time of connecting the premises to the public sewer shall be permitted, where no hazard, nuisance, or insanitary condition is evidenced and written permission has been obtained from the Authority Having Jurisdiction, remain connected to such properly maintained private sewage disposal system where there is insufficient grade or fall to permit drainage to the sewer by gravity.
It shall be unlawful for a person
to deposit, by means whatsoever, into a plumbing fixture,
floor drain, interceptor, sump, receptor, or device which is
connected to a drainage system, public sewer, private
sewer, septic tank, or cesspool, ashes; cinders; solids; rags;
flammable, poisonous, or explosive liquids or gases; oils;
grease; and whatsoever that is capable of causing damage to
the public sewer, private sewer, or private sewage disposal
system.
No rain, surface, or subsurface water shall be connected to or discharged into a drainage system, unless first approved by the Authority Having Jurisdiction.
No cesspool, septic
tank, seepage pit, or drain field shall be connected to a
public sewer or to a building sewer leading to such public
sewer.
The
Authority Having Jurisdiction shall review before approval, the installation of a commercial food waste disposer
connecting to a private sewage disposal system.
An approved-type, watertight sewage or
wastewater holding tank, the contents of which, due to their
character, shall be periodically removed and disposed of at
some approved off-site location, shall be installed where
required by the Authority Having Jurisdiction or the Health
Officer to prevent anticipated surface or subsurface contamination
or pollution, damage to the public sewer, or other
hazardous or nuisance conditions.
The building sewer, beginning 2 feet (610 mm) from a building or structure, shall be of such materials as prescribed in this code.
Joining methods and materials shall be as prescribed in this code.
Replacement of existing building
sewer and building storm sewers using trenchless methodology
and materials shall be installed in accordance with
ASTM F1216.
Pipe, brick, block, prefabricated septic
tanks, prefabricated septic tank or seepage pit covers, or
other parts or appurtenances incidental to the installation of
building sewers or private sewage disposal systems shall be
in accordance with the approval requirements of Chapter 3
of this code.
The minimum size of a building sewer shall
be determined on the basis of the total number of fixture
units drained by such sewer, in accordance with Table
717.1. No building sewer shall be smaller than the building
drain.
For alternate methods of sizing building sewers, see Appendix C.
For SI umts: 1 inch = 25 mm, 1 inch per foot = 83.3 mm/m
For alternate methods of sizing building sewers, see Appendix C.
| SIZE OF PIPE (inches) |
SLOPE, (inches per foot) |
||
| 1/16 | 1/8 | 1/4 | |
| 6 and smaller | (As specified in Table 703.2/ No minimum loading) |
||
| 8 | 1950/1500 | 2800/625 | 3900/275 |
| 10 | 3400/1600 | 4900/675 | 6800/300 |
| 12 | 5600/1700 | 8000/725 | 11200/325 |
* See also Appendix H, Private Sewage Disposal Systems. For alternate
methods of sizing drainage piping, see Appendix C.
The
sewer system shall have the capacity to remove all waste
from the various processing and cleaning operations and to
minimize or prevent stoppage and surcharging at the
system.
Building sewers shall be run in practical alignment
and at a uniform slope of not less than 1/4 inch per foot
(20.8 mm/m) toward the point of disposal.
Exception: Where approved by the Authority Having Jurisdiction and where it is impractical, due to the depth of the street sewer or to the structural features or to the arrangement of a building or structure, to obtain a slope of 1/4 inch per foot (20.8 mm/m), such pipe or piping 4 inches (100 mm) through 6 inches (150 mm) shall be permitted to have a slope of not less than 1/8 inch per foot (10.4 mm/m) and such piping 8 inches (200 mm) and larger shall be permitted to have a slope of not less than 1/16 inch per foot (5.2 mm/m).
Exception: Where approved by the Authority Having Jurisdiction and where it is impractical, due to the depth of the street sewer or to the structural features or to the arrangement of a building or structure, to obtain a slope of 1/4 inch per foot (20.8 mm/m), such pipe or piping 4 inches (100 mm) through 6 inches (150 mm) shall be permitted to have a slope of not less than 1/8 inch per foot (10.4 mm/m) and such piping 8 inches (200 mm) and larger shall be permitted to have a slope of not less than 1/16 inch per foot (5.2 mm/m).
Building sewer piping shall be laid on a
firm bed throughout its entire length, and such piping laid
in made or filled-in ground shall be laid on a bed of
approved materials and shall be properly supported as
required by the Authority Having Jurisdiction.
No building sewer or
other drainage piping or part thereof, which is constructed
of materials other than those approved for use under or
within a building, shall be installed under or within 2 feet
(610 mm) of a building or structure, or part thereof, nor less
than 1 foot (305 mm) below the surface of the ground. The
provisions of this subsection include structures such as
porches and steps, whether covered or uncovered; breezeways;
roofed porte cocheres; roofed patios; carports;
covered walks; covered driveways; and similar structures or
appurtenances.
Cleanouts shall be placed inside the
building near the connection between the building drain and
the building sewer or installed outside the building at the
lower end of the building drain and extended to grade.
Additional building sewer cleanouts shall be installed at intervals not to exceed 100 feet (30480 mm) in straight runs and for each aggregate horizontal change in direction exceeding 135 degrees (2.36 rad).
Additional building sewer cleanouts shall be installed at intervals not to exceed 100 feet (30480 mm) in straight runs and for each aggregate horizontal change in direction exceeding 135 degrees (2.36 rad).
Where a building sewer
or a branch thereof does not exceed 10 feet (3048 mm) in length and is a straight-line projection from a building drain
that is provided with a cleanout, no cleanout will be
required at its point of connection to the building drain.
Required building sewer cleanouts shall be extended to grade and shall be in accordance
with the appropriate sections of cleanouts, Section 707.0, for sizing, construction, and materials. Where building sewers are located under buildings, the cleanout requirements of Section 707.0 shall apply.
Cleanouts installed under concrete or asphalt
paving shall be made accessible by yard boxes or by
extending flush with paving with approved materials and
shall be adequately protected.
Approved manholes shall be permitted to
be installed in lieu of cleanouts, where first approved by the
Authority Having Jurisdiction. The maximum distance
between manholes shall not exceed 300 feet (91440 mm).
The inlet and outlet connections shall be made by the use of a flexible compression joint not less than 12 inches (305 mm) and not exceeding 3 feet (914 mm) from the manhole. No flexible compression joints shall be embedded in the manhole base.
The inlet and outlet connections shall be made by the use of a flexible compression joint not less than 12 inches (305 mm) and not exceeding 3 feet (914 mm) from the manhole. No flexible compression joints shall be embedded in the manhole base.
Building sewers or drainage piping of clay
or materials that are not approved for use within a building
shall not be run or laid in the same trench as the water pipes
unless the following requirements are met:
- The bottom of the water pipe, at points, shall be not less than 12 inches (305 mm) above the top of the sewer or drain line.
- The water pipe shall be placed on a solid shelf excavated at one side of the common trench with a clear horizontal distance of not less than 12 inches (305 mm) from the sewer or drain line.
- Water pipes crossing sewer or drainage piping constructed of clay or materials that are not approved for use within a building shall be laid not less than 12 inches (305 mm) above the sewer or drain pipe.
Except as provided in Section
721.2, no building sewer shall be located in a lot other than
the lot that is the site of the building or structure served by
such sewer nor shall a building sewer be located at a point
having less than the minimum distances referenced in Table
721.1.
For SI units: 1 foot = 304.8 mm
Notes:
| Buildings or structures1 | 2 |
| Property line adjoining private property | Clear2 |
| Water supply wells | 503 |
| Streams | 50 |
| On-site domestic water service line | 14 |
| Public water main | 105, 6 |
Notes:
1 Including porches and steps, whether covered or uncovered; breezeways; roofed porte cocheres; roofed patios; carports; covered walks; covered driveways;
and similar structures or appurtenances.
2 See also Section 312.3.
3 Drainage piping shall clear domestic water supply wells by not less than 50 feet (15240 mm). This distance shall be permitted to be reduced to not less
than 25 feet (7620 mm) where the drainage piping is constructed of materials approved for use within a building.
4 See Section 720.0.
5 For parallel construction.
6 For crossings, approval by the Health Department or the Authority Having Jurisdiction shall be required.
Nothing contained in this code shall
be construed to prohibit the use of all or part of an abutting
lot to:
- Provide access to connect a building sewer to an available public sewer where proper cause and legal easement, not in violation of other requirements, has been first established to the satisfaction of the Authority Having Jurisdiction.
- Provide additional space for a building sewer where proper cause, transfer of ownership, or change of boundary, not in violation of other requirements, has been first established to the satisfaction of the Authority Having Jurisdiction. The instrument recording such action shall constitute an agreement with the Authority Having Jurisdiction and shall clearly state and show that the areas so joined or used shall be maintained as a unit during the time they are so used. Such an agreement shall be recorded in the office of the County Recorder as part of the conditions of ownership of said properties, and shall be binding on heirs, successors, and assigns to such properties. A copy of the instrument recording such proceedings shall be filed with the Authority Having Jurisdiction.
An abandoned building
(house) sewer, or part thereof, shall be plugged or capped
in an approved manner within 5 feet (1524 mm) of the
property line.
A cesspool, septic tank, and seepage pit that has been abandoned
or has been discontinued otherwise from further use,
or to which no waste or soil pipe from a plumbing fixture is
connected, shall have the sewage removed therefrom and
be completely filled with earth, sand, gravel, concrete, or
other approved material.
The top cover or arch over the cesspool,
septic tank, or seepage pit shall be removed before filling,
and the filling shall not extend above the top of the vertical
portions of the sidewalls or above the level of the outlet
pipe until inspection has been called and the cesspool,
septic tank, or seepage pit has been inspected. After such
inspection, the cesspool, septic tank, or seepage pit shall be
filled to the level of the top of the ground.
No person owning or controlling a
cesspool, septic tank, or seepage pit on the premises of such
person or in that portion of a public street, alley, or other
public property abutting such premises, shall fail, refuse, or
neglect to comply with the provisions of this section or
upon receipt of notice so to comply from the Authority
Having Jurisdiction.
Where disposal facilities are
abandoned consequent to connecting a premises with the
public sewer, the permittee making the connection shall fill
abandoned facilities in accordance with the Authority
Having Jurisdiction within 30 days from the time of
connecting to the public sewer.
Building sewers shall be tested by plugging
the end of the building sewer at its points of connection
with the public sewer or private sewage disposal system
and completely filling the building sewer with water from
the lowest to the highest point thereof, or by approved
equivalent low-pressure air test. Plastic DWV piping
systems shall not be tested by the air test method. The building sewer shall be watertight.
The drainage and plumbing systems must permit the
quick runoff of all water from plant buildings, and of surface
water around the plant buildings, and of surface water
around the plant and on the premises; and all such water
shall be disposed of in such a manner as to prevent a
nuisance or health hazard.
Toilet soil lines shall be separated from house
drainage lines to a point outside the building unless an automatic backwater check valve is installed to prevent backflow.
Drainage from toilet bowls and urinals shall not be
discharged into a grease catch basin, nor shall such
drainage be permitted to enter the sewer lines at a point
where there might be a possibility of such drainage backing
up and flooding the floor of the building.
Drainage and plumbing systems shall meet the requirements
of Section 724.1.
The outer premises of every official establishment,
including docks, areas where cars and other vehicles are loaded, driveways, approaches, yards, pens and alleys,
shall be drained.
For new acute care hospital buildings submitted after the effective date of this code, the hospital shall have an onsite holding tank[s] to store sewage and liquid waste sufficient to operate essential hospital utilities and equipment in the acute care hospital building, to support 72 hours of continuing operation in the event of an emergency. Any general acute care hospital in operation after January 1, 2030 shall have an on-site holding tank[s] to store sewage and liquid waste sufficient to operate essential hospital utilities and equipment in the acute care hospital buildings on the campus with an SPC-3, SPC-4, or SPC-5 rating, to support 72 hours of continuing operation in the event of an emergency. The emergency waste holding capacity shall he based on the Water Conservation/Water Rationing Plan required in Section 615.4.1. See also California Building Code, Part 2, Section 1616A.1.42.
Exception: Hook-ups that allow for the use of transportable means of sewage and liquid waste disposal may be provided instead of on-site storage if the hospital has a plan for storage of sewage and liquid waste. This plan may include the use of leak-proof bags if adequate storage of these and other bags of waste are provided. These storage facilities shall comply with the appropriate local health and environmental authorities' requirements, California Department of Public Health requirements for medical waste management, and comply with the following minimum requirements:
- Location[s]. Location[s] shall be provided for waste collection and storage with sufficient space based upon the volume of projected waste and length anticipated storage.
- Enclosure[s]. Lockable room[s] or lockable screened enclosure[s] of adequate capacity to store the quantity of waste anticipated shall be provided for the washing and cleaning of containers and for the storage at sewage and waste water.
The room[s] or screened enclosure[s] shall include the following: