in the past 6 yrs we have had to have a plumber come in 3 times. I'm at the end of my rope. We live on a slab house, every other year the shut off for the cold water in my shower decides it doesn't want to totally shut off. With the way the economy is we've gotten to the point that instead of having it fixed again we just shut off the water to the shower. We're down to 1 bath and now the tub stop is acting up. Hubby and I have watched all kinds of how to videos but don't know how to fix the shower. We got the tub fixed for now but don't know how long it will last. Other than removing and redoing the shower I don't know what to do. The valve seems to be too short for the depth of the wall so when I turn off the water after a few weeks it works loose and if I try to shut it all the way the screw that hold on the handle snaps. HELP!!!!