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 In-floor pex fix question
Author: Du015 (Canada)

Hey All,

I was cutting for a toilet flange and went wide and hit some pex. See image below. How would you guys tackle this? I can’t use expansion fittings I don’t think as it looks to be normal pex-b. Any help is much appreciated. Thanks. Hoping not to chip up any tile as the tile guys aren’t here.


Shoot that link isn’t working.. I’ll get it fixed here asap

Edited 2 times.

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 Re: In-floor pex fix question
Author: bernabeu (SC)


Abandon the piping


Start chopping, the tile job is caput.

The PEX itself appears to be 'flattened' so NO 'patch job' is even 'possible' with minimum chopping.

IMO: if this is in floor radiant heating you need to determine how much you want it as opposed to abandonnig in place - you WILL have a tile replacement as you do NOT want any couplings embedded in mortar


"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

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 Re: In-floor pex fix question
Author: hj (AZ)

It is probably NOT a radiant system since it does not appear to have an oxygen barrier. Maybe an insert coupling, or two, with compression rings

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 Re: In-floor pex fix question
Author: bernabeu (SC)


the hole is where he wants the wc

time for a full fix and tile replace


"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

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 Re: In-floor pex fix question
Author: packy (MA)

pex repair couplings are available.
dig out some of the plywood, do the repair(rerouting as necessary) and enbed the whole repair in lots of silicone caulk. this will keep you from developing squeeks.

i've not done a lot of repairs like this but the few i've done are doing fine.

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