I am renovating my 2nd floor bathroom and am replacing the 2nd floor bathtub. The tub i replaced was not installed correctly so i can;t compare it to that. But when i went to put the new tub in i ran into a problem, i don't have enough depth (i have 2x6 joists) for the drain and trap. short of not putting in the trap at all, is there something i can do to fit a drain and trap within the depth permitted by the 2x6 floor joist?