Re: Cast iron horizontal sewer pipe.
Posted by ED on January 14, 2004 at 22:44:40:
In response to Re: Cast iron horizontal sewer pipe.
You are going to want to slope that horizontal pipe at 1/4 inch per foot. Then when you get to the stack it's best to create a sweeping motion with elbow fittings that run into the stack.

Does this kitchen drain run into the stack using a wye connector or a tee? Running a drain pipe at a large slant avoiding appropriate elbow fittings, etc, is not code.

: Hey, funny thing, I have the same problem. My house was built in 1957. Last year we remodeled the back of the house, and they ended up replacing much of the cast iron with PVC. The kitchen drains go horizontal under the floor for about 8 feet, then turns 90 degrees to meet the undergound main sewer line. It is still cast iron.

: I am thinking of cutting the cast iron and using the rubber couplers that Ed mentioned to bring in the new PVC.

: I have a question for Ed, though. The horizontal part is about 8 feet. Should I make it so that there is a slant? Or should I just use 2 90 degree elbows like it is now?

: Doug

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