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Old 06-27-2011, 07:03 PM   #1
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drain pitch

I am converting a bedroom in my house to a master bath, but the septic and drain field are on the opposite side of the house. I understand that I will have to cut the concrete floor to run my new pipes, but how much pitch should I give it ? Any info to make this project easy will help

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Old 06-27-2011, 07:20 PM   #2
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drain pitch

I believe it's 1/4" per foot.


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Old 06-27-2011, 10:26 PM   #3
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drain pitch

^^^ +1 to DM. Min is 1/4" per foot for what you are doing.
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Old 06-28-2011, 07:25 AM   #4
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drain pitch

1/8" per foot if you use 4" pipe. In Canada, anyways. 1/4" per foot if you use 3" and smaller pipe.
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Old 06-28-2011, 01:49 PM   #5
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drain pitch

Just be aware that where the slope of a drain is concerned, more is not better. Too much slope can allow the water to run ahead of the solid waste. The 1/4" per foot is said to be a good slope for drains.

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