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When cast iron goes bad...


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I'm wondering if that pipe was pitched properly. That's what happens after years of standing water.

Actually, the section pictured was sloped correctly. It was 55 years old -- a little premature for most failures of this type that I see.

My inspection this morning of a different home (roughly similar age) did have a replaced section that wasn't well done. One end of the cast iron wasn't re-supported after being replaced by PVC. The "plumber" apparently decided that ductwork was a good support. It may be hard to tell in the photo, but the drain flow was downhill from left to right.

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I look at a lot of cast iron and most of it is still in pretty good shape, some of it well over fifty. I also find lots of galvinized, which almost always looks like that on the horizontals.

In my own house I have cast. One problem I had was a crack at the top of the pipe, likely a bad casting. Unless the pipe fills to the top you'll never see it leak.

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