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-   -   Shower and its sub-floor? (http://www.houserepairtalk.com/f45/shower-its-sub-floor-2507/)

jlawrence42 07-11-2007 01:04 PM

Shower and its sub-floor?
 
2 Attachment(s)

I am planning to build a shower in my downstairs bathroom (see first attached picture). The floor of the bathroom is built on a slab foundation. When I pulled out the old shower, it exposed the plumbing beneath (see second attached picture). As I hope you can see, there is a hole in the slab with a PVC trap that runs into a cast iron pipe. The cast iron then disappears into the slab towards the main waste pipe.

My first question is - what should I do with the hole in the slab? I assume that I want to make a solid, flat sub-floor since the books I have all show a base layer of plywood beneath the shower. A friend suggested that I should pour sand over the plumbing and then fill the rest with concrete. Any thoughts?


jlawrence42 07-11-2007 01:04 PM

Shower and its sub-floor?
 
2 Attachment(s)

I am planning to build a shower in my downstairs bathroom (see first attached picture). The floor of the bathroom is built on a slab foundation. When I pulled out the old shower, it exposed the plumbing beneath (see second attached picture). As I hope you can see, there is a hole in the slab with a PVC trap that runs into a cast iron pipe. The cast iron then disappears into the slab towards the main waste pipe.

My first question is - what should I do with the hole in the slab? I assume that I want to make a solid, flat sub-floor since the books I have all show a base layer of plywood beneath the shower. A friend suggested that I should pour sand over the plumbing and then fill the rest with concrete. Any thoughts?



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