Question, we are ready to install our Copper "drop in" tub, and was curious if anybody else has worked with copper tubs?

The bottom of the tub has some flex, so we need to use foam or something to insulate and build some support for the tub. Our first thought was to use some foam underneath the tub, fill the tub with water and let it set hard. My buddy remembers some type of marsh mellow texture stuff, but can't find it now. We did build the support frame about 1/2 inch high.

Does anybody have any other ideas?

Thank you

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