Purchased whirlpool tub. Is NOT a drop in. Says I am to mortar the floor that it will sit upon when I install. I understand need for that IF it was just a tub.. However, this tub came "mounted" on a wooden board. I don't see how mortaring under the wooden board will benefit the tub in any way.. .Is this board to be removed upon installation? Any info is greatly appreciated.
Thx.
Thx.