Help - I got Kerdi-Fix on my stub-outs [Archive] - Ceramic Tile Advice Forums - John Bridge Ceramic Tile


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09-18-2008, 09:44 AM
So I got my Kerdi up and then sealed the area between the plumbing stub-outs and the drywall with kerdi-fix, but I ended up getting some of it on the threads of the stub outs. I've tried peeling it off but that stuff is so thick and doesn't come off easily - it leaves plenty behind.

My concern is that once I put my plumbing fixtures on, the kerdi-fix on the threads will prohibit a good tight waterproof connection. I was wondering if anybody had any suggestions for getting the stub threads clean for the showerhead and body jet connections?



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09-18-2008, 10:03 AM
You can rent a thread chase, or make one yourself.

Are these stub-outs male or female and can you at least get something started on those threads?

A picture would help so we could see exactly what you have to deal with.

09-18-2008, 04:01 PM
Hi Mike,

Thanks for the note. The stub-outs are standard male 1/2" threaded brass - I've attached some pitchers of them. Maybe I should get a nut that would fit the threads and run it on it a few times? I'm just really concerned that no matter what, a little might be left behind and that will cause the connection to not be watertight and leak.

Thanks again!

Jason ( (

09-18-2008, 04:16 PM
have you tried a hard wire brush ?
a little might be left behind and that will cause the connection to not be watertight and leak.I think Teflon tape or plumbers thread dope will seal it up.

on another note........

this thread reminded me of that old Reese's commercial.

"I got Kerdi-Fix on my stub-outs"
you got chocolate on my peanut butter!
you got peanut butter on my chocolate!

09-18-2008, 04:53 PM
Steel coupling work better, Mikey, last longer, too. :)

I wouldn't worry about it much. Cut around the pipe close to the wall with a utility knife and run a war brush over them threads little bit. What stays on is pipe dope, not Kerdi Fix. :shades:

My opinion; worth price charged.