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We had a new shower put in (by a contractor who was in over his head) during a remodel a few years ago. About a year ago the built-in-bench starting to collapse. When we pulled out the bench we noticed that there was no shower pan under it- eek! We need to add one.

Here's my question? Can we simply fill it in instead of starting over. Every contractor that has looked at it says that they have to pull out the existing floor (which includes the tile that I'll have a hard time replacing). I don't mind having to replace wall tile... i just want to avoid pulling out the floor.

I'm convinced that there has to be a way even if it's unconventional.

current shower situation

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What's the liner material we're seeing? –  bcworkz Dec 28 '13 at 22:07
    
Do the contractors that you bring out say why you need to rip up the floor? Could it be something unrelated to replacing the bench? –  Edwin Dec 29 '13 at 7:31
    
You have options. You can cement another membrane over the existing CPE membrane. You could use a liquid waterproofing membrane like RedGard. It depends on how much of your existing membrane is sticking out and what condition it is. –  Edwin Dec 29 '13 at 7:36
    
Thanks for your responses. The liner says "shower liner" in large print on it. The liner had been screwed into the sides of the bench so there are some holes. It sounds like cementing another membrane on top of it (as Edwin suggested) would address that issue. In that case can we fill in the area with mud after we add the liner and finish out the floor/walls? Thanks for your help! –  user18870 Dec 29 '13 at 22:58
    
So you're getting rid of the bench? –  Edwin Jan 1 at 5:46

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