Bathtub installation question Answered
I'm installing a new soaker-style bathtub as part of a bathroom renovation. It is acrylic, and is designed to fit into a cutout. That is, there is a tiled space between the lip of the tub and the tiled walls around the tub.
I bought the tub on sale as a demo model from a home store (Rona, kinda like Home Depot), and as such it came with no installation instructions. I couldn't find them online, and I wasn't able to get any help from the manufacturer, either. Perhaps I need to pester them more.
Anyway, the issue is this. On many similar tub installs, I've seen them layer up mortar under the tub for support. However, my tub has two wooden rails (2x3s) permanently fiberglassed to the bottom. In addition, a very dense hardboard spans the entire bottom of the tub. It really seems as if the tub is designed to be set on the floor just like that, perhaps with wood blocks screwed in around the edges of the rails to keep the tub from shifting.
I can do that if that's how it should be done. I just don't want to risk cracking the tub with hundreds of pounds of water and human - my wife would not be pleased, nor would I. Does anyone have experience with this sort of thing?