In the last 3 weeks I have had the unfortunate opportunity to deal with customers that have had bathtub liners installed over their old tubs. In all 3 cases, there was leaking at the drain with water between the old tub and the insert. In 2 cases, the liners had been installed less that 3 years ago.
So how do you correct a problem like this? Well, you cut a hole in the bottom of the tub, suck out all the water and then piece by piece, cut and remove the liner. What you are left with is a black sticky glue substance that has to be removed and the tub cleaned. A new drain assembly must then be installed.

