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// CODE SNIPPET

P-904.5.1 Main House Drain

Philadelphia Plumbing Code > 9 Soil and Waste Piping > P-904 Sizes > P-904.5 Minimum Size of Soil and Waste Pipe > P-904.5.1 Main House Drain
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The minimum size of the main house drain receiving the discharge of water closets shall be 4 inches inside nominal diameter.

Related Code Sections


P-904.5.1 Soil and Waste Piping, Main House Drain
The minimum size of the main house drain receiving the discharge of water closets shall be 4 inches inside nominal diameter ...
Philadelphia Plumbing Code > 9 Soil and Waste Piping > P-904 Sizes > P-904.5 Minimum Size of Soil and Waste Pipe > P-904.5.1 Main House Drain
P-1401.2 Individual Subsurface Sewage Disposal Systems, House Trap
A house trap will not be required where the main sanitary house drain is connected to an individual on-site subsurface sewage disposal system ...
Philadelphia Plumbing Code > 14 Individual Subsurface Sewage Disposal Systems > P-1401 General > P-1401.2 House Trap
P-1104.3 Vents and Venting, Relief Vent
A relief vent pipe shall be installed on the main drain before the main house trap inside the building and be connected to the nearest vent line ...
Philadelphia Plumbing Code > 11 Vents and Venting > P-1104 Velocity Breaks in Buildings Over 30 Stories > P-1104.3 Relief Vent
P-1006.4 Storm Water Drainage Piping, Combined Drainage Piping
Where a combined main sewer is utilized, the house drain and house storm drain shall be connected to a combined house drain or combined sewer ...
Philadelphia Plumbing Code > 10 Storm Water Drainage Piping > P-1006 Size of Leaders and Storm Drains > P-1006.4 Combined Drainage Piping
Section P-202 Definitions, General Definitions
the base of a stack connected to the main house drain, which receives the discharge from soil, waste, or other drainage pipes in the building ...
Philadelphia Plumbing Code > 2 Definitions > P-202 General Definitions
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