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Old 06-09-2013, 07:19 PM   #1
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Can I reuse this old concrete shower pan?


I recently bought a house and in the basement there was an existing shower. The shower base was simply concrete poured on top of the basement concrete floor with a drain, no tiles.

When I demo'd the shower walls, they used the green drywall and 3 layers of 1mil plastic, but I found no rubber liner that I would expect to see coming up from under the concrete shower base.

Here's the shower base: (The insulation is on an exterior wall)

http://basementbathroom.shutterfly.com/pictures/11

In the following photo, the white line between the concrete and wall stud is the drywall

http://basementbathroom.shutterfly.com/pictures/11#9

How can I get that proper waterproof layer that's needed for the base and the walls?

Can I just install concrete board on the walls and then get a nice continuous layer of redguard on the floor and walls?
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Old 06-09-2013, 07:35 PM   #2
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I think that there is to much wrong with that base to make it saalvageable.

The drain is in the far end and I bet it is only 1 1/2"--

The pitch doesn't look very good either----How to build a shower - Building a shower pan with pre-sloped mortar bed, liner and curb.

There are three good ways to build your own shower base---

Membrane under the pan-----pan and walls first--then a brush on membrane--and the Schluter system ,with a surface mounted membrane--
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Old 06-09-2013, 09:46 PM   #3
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Quote:
I think that there is to much wrong with that base to make it saalvageable.
So, are you saying I have to jackhammer the existing shower base and start over?

Quote:
--pan and walls first--then a brush on membrane--
Isn't that what I can do? I have the pan, so I just add cementboard walls and then the brush on membrane.

Last edited by elyders; 06-09-2013 at 09:50 PM. Reason: added second part...
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Old 06-09-2013, 10:13 PM   #4
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Quote:
Originally Posted by oh'mike View Post
The drain is in the far end and I bet it is only 1 1/2"
Actually, the handle and shower head are on the same side as the drain. Sorry, I didn't note that.
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Old 06-10-2013, 02:11 AM   #5
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Hydroban showers are a safe method---if the pan/wall connection is stable.

That is usually done by hanging the rock first and then casting the base against the wall---not possible now.

How big is the drain?Is it an adjustable drain that can be set for tile?
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Old 06-10-2013, 12:32 PM   #6
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Quote:
How big is the drain?Is it an adjustable drain that can be set for tile?
The drain pipe is 2" and isn't adjustable (plus, very rusty and clogged):
http://basementbathroom.shutterfly.com/pictures/17

Can I simply install an adjustable drain?

I really don't want to have to jackhammer this shower base.
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Old 06-10-2013, 08:03 PM   #7
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If the drain and P-trap are old and rusty---I urge you to rip it out and update the drain.

Mighty big expense rebuilding the shower walls only to have a lousy pan and worn out drain.

It's your house so ,of course you must make the decisions--but I think building on top of that poorly made base and old rust drain is not wise.

I build bathrooms---a lot of them---and my suggestions come from my world----Mike-----
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