We all know that 1/4" per foot is the minimum slope for sewer pipe with solids. My question is this: Is a drop of 1/2" per foot ok or even more or should you 90 elbo it down to continue the 1/4" drop.
- posted
14 years ago
We all know that 1/4" per foot is the minimum slope for sewer pipe with solids. My question is this: Is a drop of 1/2" per foot ok or even more or should you 90 elbo it down to continue the 1/4" drop.
Nothing wrong with more than 1/4" pitch. Old myth about too much pitch has been debunked by plumbing engineers.
Mark
"We all know that 1/4" per foot is the minimum slope for sewer pipe with solids."
We do? Suggest you learn the difference between a sewer pipe and a drain pipe. Then move onto a building drain, all are different and are sized differently with different slope/grade. Your looking for trouble if you increase greater then 1/2" per ft. over a long run on a building/ house sewer, this becomes even a bigger problem today with low consumption water closets.
"Old myth about too much pitch has been debunked by plumbing engineers."
Not true, they just don't care anymore. Most of these guys today would have a hard time being apprentices 40-50 years ago.
kenny b
If you believe there is such a thing as too much pitch, answer this: What is the maximum pitch possible?
Mark M.
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