Re: main sewer clean-out
Posted by john on October 18, 2003 at 09:05:43:
In response to Re: main sewer clean-out
: : Do you know that you actually have a house trap at that point? The water would not normally rise in the cleanout pipe under any conditions other than a partially plugged main line.

: : : I had a sewer cleaning service clean or remove the obstruction in my main sewer pipe.
: : : I think the problem was, mostly roots from the tree in front of my house. After the work was done, I turned a couple of faucets on and flushed the toilet. When the water reached the clean-out opening, it rose to the top of the clean-out opening before it continued on its way to the street. Is this normal or should it have stayed close to the bottom of the pipe? Or may be rise half way between the bottom and the top of the 4 inch pipe, (I guess).
: : : I noticed not one but two plugs, several inches apart. I suppose the trap is in the middle between the two plugs.
: : : I ask, should the man have inserted "his snake" into the hole on the inside instead of the one closer to the street? If that's possible, that is. And by doing this, the trap would have been cleaned out as well. I am guessing he was too lazy to do this and this
: : : is the cause of the water stream rising to the top of the clean-out hole before dropping, on its way to the street.

: hj is right about the trap. Are you sure? A house trap is rare used but your jurisdiction may have them. Probably those plugs are two directional cleanouts and they face opposite of eachother so the space inbetween can be cleaned. The sewer person needs to go through both. The C.O. furtherest from your house goes toward your house and you are right the inside one goes on out to the sewer. Water should not rise in the cleanout.LonnythePlumber.

:I have a house in Deaborn MI that was built in 1940. Wayne county has a combined sanitary and storm sewer system. My home has a double clean-out house trap inside the basement were the wastes leaves the house. I'm told by local plumbers that this was common during this period. My weep drain system dumps into the sanitary via a "sand trap" that was designed to allow the storm/surface water to enter the sanitary system, but with a back flow valve to prevent backup of sewer water into the storm system. I am currently having problems of sewer water backing into the sand trap. Still trying to figure out the problem. JK

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