re-use a drain pipe?

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mykle

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Hi,

I need to move my toilet rough-in back to the 12" mark -- right now it's closer to 15". The drain pipe is cast-iron from 1928.

Everyone I've talked to has suggested using a snap-cutter to cut the pipe, then using some kind of boot to attach a new piece of cast iron or ABS plastic.

I'm wondering: since I'm just trying to shorten the drain pipe, is there any way i could just make two cuts with the snap cutter, to cut out 3" from the horizontal section, and then reconnect the two ends? I would need some kind of connector that's sure to seal properly.

Thanks for your advice,
-mykle-
 

Terry

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If you are removing the floor for access and to replace and cut a new location, then sure, you can cut the cast iron with a snap cutter.

You would need shielded couplings to reinstall either the end section of cast, or you could splice in ABS or PVC for the 90 bend and flange.

proflex_33.jpg


If it's a lead bend, you should remove from the hub, and build it back out from the hub.
fernco_hub_4.jpg


Or you can move the bowl back 2" without touching the drain, by using an adapter like the one below.

unifit_choice.jpg


The Toto Unift adapter, meant for moving a bowl 2"
More information on which bowls they work with.
 
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mykle

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Thanks! I'll try it that way. We're tearing up the floor anyway, for tile.

I looked at the Unifit-compatible models, but they all still end up projecting too far into the room, at about 30". But the Toto Aquia II, at 27 1/2" with a 12" rough-in, will just barely fit without my bathroom drawers bumping into it.
 
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