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SJNServices 05-11-2010 10:34 PM

Waste-water drain
What is the proper amount of drop per foot for a sewer line/waste water drain?

majakdragon 05-12-2010 06:55 AM

Standard is 1/4" per foot for pipe sizes under 6". Over 6" it drops to 1/8" per foot.

SJNServices 05-12-2010 07:11 AM

That's exactly how much I was thinking it was, but I wasn't sure. Thank you very much.

Redwood 05-12-2010 09:09 AM

That is a minimum pitch, the maximum is vertical.
If someone says something about water outrunning solids it is a busted myth.

SJNServices 05-13-2010 09:18 AM

Job done. and water does indeed go down hill!:beer:

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