Lane Gray

04:06PM | 12/28/02
Member Since: 12/26/02
4 lifetime posts
We're going to be converting a very spacious half bath to a full bath, and noticed on hte instructions for the one-piece shower/tub that it said it needed a proper foundation to sit on, but no details as to what that means. I'd been thinking probably some 2X4s arranged as floor joists, with the tub sitting on 3/4 plywood (although, because there's already a drain opening about 3 inches off the floor, I'd put it on 2X6 or 2X8 to get the tub the elevation-easier than cutting a new hole in the 4" waste pipe below floor grade)?
Or is something else what they'd had in mind? If not here, then where would I look for the information?


06:41PM | 12/28/02
Member Since: 11/06/02
1280 lifetime posts
Your subfloor it sits on should not pitch away from the tub drain, unless you want to take the chance that water will not ever drain all the way our of it.

Some plumbers will mix a bag of mortar mix to set the tub down onto to give it solid support under the acrylic.

Lane Gray

08:39AM | 12/30/02
Member Since: 12/26/02
4 lifetime posts

Your subfloor it sits on should not pitch away from the tub drain, unless you want to take the chance that water will not ever drain all the way our of it.

of course,, so the platform will either be level, or perhaps canted *slightly* to the drain.
It will need to be on some sort of platform to give it the height it needs in order to be above the fitting in the waste stack, which is about 3 inches above the floor.
Once the platform is built, I do plan on doing the mortar base thing on top of it to give it stability.


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