What would be the suitable slope of a soil pipe & waste water pipe for sanitary drainage?

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What would be the suitable slope of a soil pipe & waste water pipe for sanitary drainage?

Slope in ratio or percentage? Pls. help

2007-03-08 08:06:26 · 4 answers · asked by count_dr 2 in Home & Garden ➔ Maintenance & Repairs

4 answers

About 1/8 inch per foot.

2007-03-08 08:14:55 · answer #1 · answered by rlbendele1 6 · 0⤊ 1⤋

It depends on how many fixtures will be hooked up to the drain pipe. The greater the slope, the more fixtures can be drained. For most residential and small commercial applications, a minimum slope of 1/8" per foot for 3" pipe and larger is required. 1/4" per foot slope is better.

2007-03-10 13:35:46 · answer #2 · answered by Dave 5 · 0⤊ 0⤋

Most plumbing codes require a 1/4" per foot slope for sanitary sewer pipes.

2007-03-09 17:17:33 · answer #3 · answered by big_mustache 6 · 0⤊ 0⤋

1 to 4 ratio.
EX: 1" drop per 4' span

2007-03-08 16:46:47 · answer #4 · answered by Mark 2 · 0⤊ 0⤋