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Old 03-15-2013, 10:47 PM   #1
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Acrylic bath tub install


My tub squeaks. I noticed that when the shady handyman was installing the tub that there was a lip all around the tub that would rest up against the wooden wall studs. Was he supposed to secure the tub by driving screws through the bath tub lip and into the studs before installing the drywall? He did not set the tub on mortar either.

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Old 03-16-2013, 05:54 AM   #2
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It looks like you know the cause of the problem----

Do you have any ideas to cure it?--You need to get grout, mud or foam under the bottom. Any ideas?

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Old 03-16-2013, 08:07 AM   #3
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It looks like you know the cause of the problem----

Do you have any ideas to cure it?--You need to get grout, mud or foam under the bottom. Any ideas?
I am still unsure if the tub needed to be secured by driving screws through the tub lip and into the wall studs. Is that an acceptable method? If yes, I am thinking of removing the bottom row of tiles, a few inches of drywall to expose the tub lip and proceed to drive screws into the wall studs. I want to try this before injecting foam underneath.
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Old 03-16-2013, 08:15 AM   #4
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Acrylic bath tub install


That might work, However,it's pulling the flange down because the base is not supported---
the flange might just crack at the screws---
flange is not designed to hold up the weight of the filled tub---
it is to keep the tub against the wall---
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Old 03-16-2013, 08:16 AM   #5
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I would not do what you plan. You will probably end up cracking your tub, and causing leaks, where you cut out the backer board. I would foam from below with high density foam, and see how that works.
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Old 03-16-2013, 08:33 AM   #6
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I would not do what you plan. You will probably end up cracking your tub, and causing leaks, where you cut out the backer board. I would foam from below with high density foam, and see how that works.
What makes me nervous about the foam is that i only have access from the drain side which is the deep end. I dont have a lot of visibility to the other end of the tub so i will be spraying blind.
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Old 03-16-2013, 08:51 AM   #7
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Fixing a mistake like that is a pain---

Consider buying a roll of stiff plastic tubing the size of the foam spout,

No access to the floor from underneath?
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Old 03-16-2013, 08:58 AM   #8
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Fixing a mistake like that is a pain---

Consider buying a roll of stiff plastic tubing the size of the foam spout,

No access to the floor from underneath?
The garage is directly underneath. The ceiling is finished with drywall and a solid inch of what seems to be stucco on top of the drywall. I will post some pictures of my access.
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Old 03-16-2013, 11:22 AM   #9
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if this is a tub with a shower there should not be any drywall behind the tile it should have been cement board unless the wall is waterproofed with kerdi.
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Old 03-16-2013, 11:50 AM   #10
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Acrylic bath tub install


Take this for what it is worth.

first, not all tubs require any base other than the one that comes with it. that means to correct this, I would check the manufacturers install procedure.

Most likely, you will only need to do as you suggested.

My experience with these tubs is that they are made to be installed without mud base of any kind.
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Old 03-16-2013, 12:09 PM   #11
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if this is a tub with a shower there should not be any drywall behind the tile it should have been cement board unless the wall is waterproofed with kerdi.
It was green colored drywall, supposed to he waterproof.
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Old 03-16-2013, 12:18 PM   #12
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It was green colored drywall, supposed to he waterproof.
It is water resistant, big difference.
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Old 03-16-2013, 12:30 PM   #13
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Big question : Is it a tub only, or a tub/shower?


If it's a tub only and that is a tiling flange, he should not have compromised it by driving screws through it.
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Old 03-16-2013, 12:31 PM   #14
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Manual clearly states to drill holes into the tiling flange and fasten to wall studs with screws. I know for a fact that this was not done. The play to my tub is not up and down, it is side to side, not much but enough to cause a squeak and comprimise the silicone seal. I am confident that securing the tub via tiling flange will solve the problem.
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Old 03-16-2013, 12:46 PM   #15
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Big question : Is it a tub only, or a tub/shower?


If it's a tub only and that is a tiling flange, he should not have compromised it by driving screws through it.
It is a bath tub with a shower. Why would the fact that there is a shower cause a problem with driving screws through the tiling flange? There will be drywall and ceramic tile covering the flange.

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