Hi, owned this house for about 10 yrs. now. The upstairs bathroom shower/tub is always leaking. It will leak, then not leak for 2 months, then all of a sudden leak again. Well now i have a bad leak in the corner of my tub/shower , which is tiled with sliding door on outside. I removed access panel and i can see the water in the corner, but i can't see where it is coming from. Downstairs i already have a big hole in the ceiling from previous leaks. I cannot see where this water is coming from, there is a big joist in the way. The tub is a solid old steel tub i think. I am getting tired of this and about to rip everything out and start from scratch. Or buy a 3 wall liner of some sort. Anyone with some ideas?