// CODE SNIPPET
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
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Where a combined main sewer is utilized, the house drain and house storm
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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
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