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Unread 09-21-2008, 08:33 PM   #1
Jeremy_M
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Pan liner got "screwed"

So I was trying to wrap up the cbu walls on my shower project. I had a buddy helping me and he was screwing down the board to the studs. Earlier I had already completed one wall and told him not to go below the height my bottom screw on the adjacent wall (To keep it out of the pan liner). So he was screwing everything in while I was in the other room finishing the cuts on the boards for the last wall.

When I got back into the room I noticed he put screws about 1.5" from the floor. Now I'm at a loss of what to do. I've been so careful and I clearly misjudged his ability to listen and comprehend.

What should I do short of ripping up the entire bed? Should I leave the screws at this point? Pull them out and silicone?
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Unread 09-21-2008, 08:45 PM   #2
Lazarus
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Sorry to say it, but you need to junk the liner and replace it. The screws should NEVER be lower than 10-12 inches above the bottom of the pan. If you try to "salvage" it, you're looking at a sure failure......
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Unread 09-21-2008, 08:46 PM   #3
JTG
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Jeremy
If it is not to much of a PIA I would remove the boards and goop the holes with the glue they use for joining pieces of the pan material you used.
If you can't or don't want to do that then I would go the silicone route buy you will need to have something like a small puddy knife that you can use to really force that stuff in there real well.
Good Luck
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Unread 09-21-2008, 08:48 PM   #4
muskymike
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Hi Jeremy, you can tell your friend to take down the CBU then patch the holes with some scrap pieces and PVC liner glue.
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Unread 09-21-2008, 08:53 PM   #5
Davy
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Welcome Jeremy. It would be best to replace it like Laz said although I have seen guys patch the liner with 3x3 pieces of scrap liner, glued with pan liner glue. If you decide to patch it, I would want to do a water test on it afterward.

Sounds like you might already have the cement bed installed on the shower floor. It's best to put up the CBU first, leaving it unnailed along the bottom, then let the mud secure the CBU along the bottom.
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Unread 09-21-2008, 09:13 PM   #6
Jeremy_M
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The one thing I'm worried about patching with a scrap piece would be the thickness of the patches at the fixed screw holes (ie furring issue).

Davy, once patched how would I go about testing it? The height of the hole is probably about the height of the curb or close to it (water breaching the curb is my delima).

Just to try to educate myself... When would water possibly go around the screw and through the liner? Being uneducated in the matter If the water level was that high I would be experiencing 1.5" standing water in the shower.
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Unread 09-22-2008, 01:51 AM   #7
JTG
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If these holes are level with the curb height I don't see that you are in for a problem.
You test by plugging the drain and filling the pan up to about an inch below the curb and check it 24 hours latter to see if you have lost water.
Good Luck
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