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Author:
cheetah99 (CA)
I have an older home built in 1949 here in California. The main sewer line heading out of the house under the crawl space
has some holes cut on the top surface of the this main sewer pipe. These are cuts about 1"x 1.5" about maybe 2 or three cut in one area. Are these some type of venting or are they not suppose to be there?
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Author:
PlumberManDan (IA)
They are not supposed to be there !!!
PlumbCat TM 2003
Plumbermandan
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Author:
stuckinlodi (MO)
Someone probably put those holes in the main sewer line so they could insert a snake and clean out the line. But with the sewer pipe having holes that are open like that you will have sewer odors and gas escaping, not a good thing. Plus any small rodent or insects can get into or out of the sewer line. And if their is a sewer backup due to a clog the raw sewage can leak out of those holes.
That section of pipe should be cut out and replaced, you can add a proper cleanout access while doing that. Or you can add a saddle fitting that can be attached onto your main sewer pipe where those holes are, and connect a cleanout to it. You can enlarge the holes in the pipe to match the opening in the new saddle fitting. The type of saddle fitting to use will depend on what your sewer pipe is made of (pvc, abs, etc).
Here is one type, they make them in many different configurations:
Edited 2 times.
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Author:
hj (AZ)
They are NOT supposed to be there.
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Author:
SHEPLMBR70 (VA)
Are you sure it's your sewer and not some sort of drainage pipe to keep the crawl space dry? They make perforated pipe for that.
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Author:
cheetah99 (CA)
Thanks for the replies.
I didn't think the holes were suppose to be there, but wasn't sure if I was missing something. I will look at having the plugged or replaced.
Edited 1 times.
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Author:
North Carolina Plumber (NC)
Probably the easiest repair would be to split a short piece of pipe lengthwise and snap one piece of it over the holes. Done correctly it will not leak.
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Author:
mr leak (CA)
They are intended as venting and improper
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