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// CODE SNIPPET

C 304.3 Size of Horizontal Branch or Vertical Stack

Uniform Plumbing Code 2018 of Nevada > C Alternate Plumbing Systems > C 304.0 Drainage System Sizing > C 304.3 Size of Horizontal Branch or Vertical Stack
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The maximum number of drainage fixture units allowed on a horizontal branch or vertical soil or waste stack of a given size shall be in accordance with Table C 304.3. Stacks shall be sized based on the total accumulated connected load at each story or branch interval.
TABLE C 304.3
HORIZONTAL FIXTURE BRANCHES AND STACKS
DIAMETER OF PIPE
(inches)
MAXIMUM NUMBER OF DRAINAGE FIXTURE UNITS
HORIZONTAL FIXTURE BRANCH1 ONE STACK OF THREE OR FEWER BRANCH INTERVALS STACKS WITH MORE THAN THREE BRANCH INTERVALS
TOTAL FOR STACK TOTAL AT ONE BRANCH INTERVAL
11/2 3 4 8 2
2 6 10 24 6
21/2 12 20 42 9
3 202 482 722 202
4 160 240 500 90
5 360 540 1100 200
6 620 960 1900 350
8 1400 2200 3600 600
10 2500 3800 5600 1000
12 3900 6000 8400 1500
15 7000 6000 8400 1500
For SI units: 1 inch = 25 mm
Notes:
1 Does not include branches of the building drain.
2 A maximum of two water closets or bathroom groups within each branch interval or more than six water closets or bathroom groups on the stack.

C 304.3.1 Horizontal Stack Offsets

Horizontal stack offsets shall be sized in accordance with Table C 304.2 as required for building drains.

C 304.3.2 Vertical Stack Offsets

Vertical stack offsets shall be sized in accordance with Table C 304.3 as required for stacks.

Related Code Sections


C 304.3 Alternate Plumbing Systems, Size of Horizontal Branch or Vertical Stack
The maximum number of drainage fixture units allowed on a horizontal branch or vertical soil or waste stack of a given size shall be in accordance ...
Uniform Plumbing Code 2018 of Nevada > C Alternate Plumbing Systems > C 304.0 Drainage System Sizing > C 304.3 Size of Horizontal Branch or Vertical Stack
P3005.4.1 Sanitary Drainage, Branch and Stack Sizing
FIXTURE UNITS ALLOWED TO BE CONNECTED TO BRANCHES AND STACKS NOMINAL PIPE SIZE (inches) ANY HORIZONTAL FIXTURE BRANCH ANY ONE ...
Residential Code 2012 of Nevada > 30 Sanitary Drainage > P3005 Drainage System > P3005.4 Drain Pipe Sizing > P3005.4.1 Branch and Stack Sizing
P3005.4.1 Sanitary Drainage, Branch and Stack Sizing
UNITS ALLOWED TO BE CONNECTED TO BRANCHES AND STACKS NOMINAL PIPE SIZE (inches) ANY HORIZONTAL FIXTURE BRANCH ANY ONE VERTICAL STACK OR ...
Residential Code 2018 of Nevada > 30 Sanitary Drainage > P3005 Drainage System > P3005.4 Drain Pipe Sizing > P3005.4.1 Branch and Stack Sizing
C 601.0 Alternate Plumbing Systems, Single-Stack Vent System
Vertical drops from fixture traps to horizontal branch piping shall be one size larger than ...
Uniform Plumbing Code 2018 of Nevada > C Alternate Plumbing Systems > C 601.0 Single-Stack Vent System
Section P3006 Sanitary Drainage, Sizing of Drain Pipe Offsets
degrees (0.79 rad) from the vertical shall be sized as follows: The portion of the stack above the offset shall be sized as for a regular stack based ...
Residential Code 2012 of Nevada > 30 Sanitary Drainage > P3006 Sizing of Drain Pipe Offsets
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