10:05AM | 05/20/05
Member Since: 07/29/03
7 lifetime posts
I just completed a full bathroom remodel. When I installed the tub (American Standard whirpool acrylic) there were no installation instructions, so I did what I knew, I supported the tub with stringers. After a visit to the American standart site today to look for a heater, I stumbled across the installation sheet. It states it bold letters: THIS BATH MUST BE SUPPORTED ALONG ITS ENTIRE BOTTOM. What can happen if I don't correct this?? Can I pump cement under the tub now through the access panel?

Thank you!



01:23PM | 05/23/05
Member Since: 08/29/04
227 lifetime posts
Here's what I do. I fill the tub with water so it has weight. Then I reach under the tub with expanding foam, through the access pannel. Concrete is good, but as it dries it will shrink away. The foam is a compromise. I typically like to set them in mortar, as I'm setting the tub. But I have successfully used foam, as long as it is the no shrink type.

Raymond VinZant Plumbing Prof.


01:14PM | 05/24/05
Member Since: 07/29/03
7 lifetime posts
Thank you Ray!!!

You made my nightmares of ripping the tub out go away!



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