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1. 
   Guest_ | Sep 28, 1999 05:37pm | #1

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   Check with your local tile distributer.They sell a rubber membrane that is glued into a plywood base and sealed on the inside corners with pre-molded pieces that are glued in.Then you mud the pan.I can't remember the name of the product but start with your tile guy.

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   Red_Oak_Restorations | Sep 29, 1999 07:46am | #2

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   Thanks for the info. Since my posting I found an archive describing such a liner, seen at http://www.pascospecialty.com. I will check with my tile supplier, too.

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   Guest_ | Sep 29, 1999 08:34am | #3

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   With apologies to our host:

   http://www.jlconline.com/jlc/archive/kitchen/mortarbed_showers/index.html

   Rich Beckman

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   Guest_ | Sep 29, 1999 08:41am | #4

   *We use a vinyl liner that we get at our local plumbing supply. It is on a roll 5' wide and they sell it by the foot. I've never glued it down, just layed it out and ran it up the wall a few inches, have to fold it in the corners. The tile setter then does a mud bed just like they used to do with a lead pan. Chuck

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   Guest_ | Sep 30, 1999 02:08am | #6

   *I've used the rubber liner, too, and glued it up with Wolverine brand cement which is almost the same as a regular rubber cement. In retrospect, I probably was hoodwinked into paying for something I could have bought at the grocery store! Anyway, I used scraps of the rubber liner to overlay joints to ensure a good tight seal. The only attachment to the floor is the clamp for the PVC drain.As far as the mud base is concerened, you need to mix pretty stiff as the water will float to the top since there is nothing to absorb it like wood or block, etc. Remember that the less water you add to the portland/sand mix, the stronger it will be.Good luck!Rich

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   Red_Oak_Restorations | Sep 30, 1999 02:08am | #5

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   Help! I need to build a perfect, leak free shower base for a custom sized, 2nd floor master bath addition. My plan calls for a 4x6 foot area with a tile-ready floor and walls. I read here in Breaktime about a soldered-copper pan but didn't catch anything about tiling over this. Your comments are appreciated.