I bought a beautiful acrylic claw foot tub and I am having my bathroom floor done with 12x12 ceramic tiles. I am concerned that the (dry) light weight of the tub will cause it to move if jarred and damage the plumbing. The tub has a shower enclosure and quality chrome plumbing risers and my stub outs are secured well. Any suggestions? I didn't want the full weight of a cast iron tub as this bathroom is on the second floor of a 1920 home. Thank you.