Hello,
I have an old home built in the 50s and the sewer system appears to be cast iron, I am in the middle of a kitchen remodel and noticed a badly rusted kitchen drain pipe, well today I was under the house and noticed the kitchen drain pipe that was rusted had busted in too. I have cut back the rusty cast iron pipe and used a ruber coupler to redo the plumbing in ABS from the ground up. The nube that I cut back goes into the ground in the cast iron main. My question is that the old cast iron that I cut out is very large 2 1/2 - 3 in in diamiter (outside) the pipe that I cut back appears in bad shape, I cut an additional 2 in out and the the thickness of good metal is very thin in places (thickness of a quarter to 1/4 in. Although the 2 in peice I cut out stans up to hammer blows I am worried that if I leave it as is it won't last another 10 - 20 years. Whan looking at the pipe I cut out it's pealing in layers like an onion. Should I cut the section out at the main or leave it like it is? I have never seen cast iron do this?
SHaun
I have an old home built in the 50s and the sewer system appears to be cast iron, I am in the middle of a kitchen remodel and noticed a badly rusted kitchen drain pipe, well today I was under the house and noticed the kitchen drain pipe that was rusted had busted in too. I have cut back the rusty cast iron pipe and used a ruber coupler to redo the plumbing in ABS from the ground up. The nube that I cut back goes into the ground in the cast iron main. My question is that the old cast iron that I cut out is very large 2 1/2 - 3 in in diamiter (outside) the pipe that I cut back appears in bad shape, I cut an additional 2 in out and the the thickness of good metal is very thin in places (thickness of a quarter to 1/4 in. Although the 2 in peice I cut out stans up to hammer blows I am worried that if I leave it as is it won't last another 10 - 20 years. Whan looking at the pipe I cut out it's pealing in layers like an onion. Should I cut the section out at the main or leave it like it is? I have never seen cast iron do this?
SHaun