Hi,

Our corner shower has a round sliding door and the water comes through between the metal seating of the door and the bottom plastic tray on the outside. It leaks through at the connection to the wall and I am concerned that this will destroy the wall. It is not tile but drywall. I'm afraid if I just seal it along the outside it will still leak into the wall from the inside. I did not install it so don't know if it wa installed correctly. I've looked at new ones in stores and most have a lip on the outside of the seating of the door so that the water will go back inside, but ours does not.

Silicone shower door on inside and outside. Make sure all surfaces to be siliconed are very very dry and clean before siliconing. This is your best bet at this time. If shower doors are not siliconed correctly when installed, they can be the worst headache. Hope this works for you. I realize the silicone can be an eyesore, but its better than water damage from a leak. Just use clear silicone(tub/shower, water proof). Please let me know how things work out.