I need to connect my pvc shower drain to the cast iron, so I get my shower pan poured. This is a repair and there is old concrete for a base. There is an inch and a half around the cast iron about 7 inches deep. There is room to get a boot on to couple them, but there is absolutely no room to tighten the bottem clamp down in the hole. Do they make anything to connect a shower flange to this or is there some kind of tricky flange that will connect on its own?

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Originally Posted by Ruggs06

I need to connect my pvc shower drain to the cast iron, so I get my shower pan poured. This is a repair and there is old concrete for a base. There is an inch and a half around the cast iron about 7 inches deep. There is room to get a boot on to couple them, but there is absolutely no room to tighten the bottem clamp down in the hole. Do they make anything to connect a shower flange to this or is there some kind of tricky flange that will connect on its own?

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I don't understand why you wish to install a PVC shower flange on a cast iron raiser. This calls for a cast iron flange type shower drain, (see image) with a lead and oakum poured and caulked joint. Good luck, Tom

Hi all:

As Tom stated, a cast iron flanged drain is probably the best way to go, but if the cast iron pipe is just too deep to work with, as much as you won't like hearing this, you simply need to open the hole a bit larger so you can use a socket/ratchet tool to tighten up the transition clamp... just no getting around it! You want to use a 2" cast x 2" PVC shielded clamp... see image.

Frankly put, I wouldn't recommend a patch job. I'd recommend ripping out the pan entirely and guarantee a job that will last for decades by replacing all with new!

Back to you...

Mark