// CODE SNIPPET
718.0 Grade, Support, and Protection of Building Sewers
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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 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 1/6 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
cochere; roofed patios; carports; covered walks; covered
driveways; and similar structures or appurtenances.
Related Code Sections
718.0 Sanitary Drainage, Grade, Support, and Protection of Building Sewers
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California Plumbing Code 2019 > 7 Sanitary Drainage > 718.0 Grade, Support, and Protection of Building Sewers
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California Plumbing Code 2016 > 7 Sanitary Drainage > 718.0 Grade, Support, and Protection of Building Sewers
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California Plumbing Code 2019 > 7 Sanitary Drainage > 719.0 Cleanouts > 719.3 Building Sewer Cleanouts