I have vertical pipe with a vertical crack in the seam. The top end has a hub and bottom is straight which goes into another hub. I would like to remove the cracked pipe because I don't think there is way to fix it. I know I have to support all the pipes on top. But what's the best way to cut the pipe out. Can I use a Rotozip with mason or ceramic tile blade?
I know about the pipe cutter with chain but not sure if I will get a clean cut because of the crack.

So, I there a way to fix the vertical crack in the pipe? The crack is long and does leak water when fixtures are in use.

Can I use no wet blade on circular saw? Mason or tile blade?
I have RotoZip tool and can get mason or tile blade? But not sure it would work.

On the top section I can use Neo straight no hub connection. But what do I use on the botton where it goes into a hub?

I could take the pipe completely. But how does the PVC connect to a hub on a castiron pipe?

Thanks.
Mech63

Hey Mech63...

As you suspected, no really good fix for a vertical crack in cast iron pipe.

The best approach to this will be to get a sawzall with a DIAMOND BLADE (made by lennox) or a carbide tipped blade and make nice straight cuts across the pipe a few inches above and below the crack.

You will cut/connect above the hub if possible, or cut the other hub out if necessary (support bottom stack using another riser clamp if neccesary)... then use shielded clamps (see picture) to make connection between PVC and cast iron pipe.

Measure between the cuts and DEDUCT 1/2" to allow for the ribs that are inside the shielded clamps....plan on folding the rubber sleeves back on themselves in order to slip the pipe in between clamps.

As you stated, be sure to support the weight of the stack using a RISER CLAMP if possible...I don't like the idea of supporting the stack with 2"x4" alone... riser clamp guarantess no slip! Riser clamps are sold at all plumbing supply houses... also where you will most likely find that diamond sawzall blade!

That should get you up and started... be careful, good luck and let us know if you have any questions...

MARK

.