I bought an American Standard 5"(You can install it where a 5' ordinary bathtub was installed.) whirlpool 6 jet 1 horsepower tub. I'm in the middle of redoing my friends bathroom and I have to say I have no problem working with plumbing, but how are you supposed to install the fiberglass whirlpool tub without it moving or squeeking against the newly installed framing. Are you supposed to put something to prevent the squeeking and how do you install it more sturdy then it is. It has a ledge going all the way around. I leveled the brace pieces that the underside of the ledge is supposed to sit on, but how do you secure it to stop the little movement it has before I install the cement board and greenboard to make it permanent. All the sides of the whirlpool are open, not like a normal tub that only has the side and back open with the front enclosed. I stablized the bottom of the whirlpool with mortar to eliminate any space that might be left so it sits somewhat more securely as per manufacturer's direction. But how am I supposed to secure the entire tub eliminating movement.