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What are your suggestions for fixing this 4" cast iron waste pipe? It has some slope issues. The pipe has not given the homeowners any problems until last year. It was installed in the 1960s.
About 20' down the line, 3:34 on the video, the pipe begins to flatten out.
Here is the video of the slope problem: [youtu.be]
Here is video (poor quality) of the inside of the pipe: [youtu.be]
The interior pipe video was taken after I thoroughly cleaned out the pipe with a drain cleaning bladder on a hose.
I first cleaned the pipe out with a drain cleaning machine (k-50), but I could not get it clear. I then used a drain cleaning bladder on a hose and got it open, but it clogs up again after about a month. I have used the drain cleaning bladder 3 times.
There is not any object, besides black goo, that clogs the pipe.
The pipe looks okay at the entrance to the cast, but further in it looks more corroded to me.
My thinking is the corrosion is just enough, coupled with the slope issues, to cause it to keep clogging.
I am thinking to just replace it with 4" PVC with a 1/4" slope.
Edited 1 times.
... I am thinking to just replace it with 4" PVC with a 1/4" slope. ...
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
Edited 1 times.
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