I bought a tub a year ago cause it was a good deal and i thought it would work. it was a drop in, and we just bought a house so i thought i would put in a shower and a bath separate. When it came time for the job to be designed, i didn't have the space. so i proceeded to do my best putting a drop in tub in an enclosure (3 wall shower) covering the walls around it in 12x12 porcelain tile. It stuck out about 2" from the wall, and proceeded to leak like a seive. So i just ripped it out, and have rebuilt the supports and put it in as close as i could (had to shave the ends a bit) Besides caulking the heck out of it is there anything i can do to make my drop in tub more water proof? i worry i am wasting my time. (but i do not want to have to go out and buy a new tub!!) there isn't such a thing as an add-on flange? i know i should have a nailing flange, drywall over it...I don't thoughts?