I just found a leak from my shower stall. The leak appears on the carpet on the adjacent side of the bathroom shower stall, in my guest bedroom (same floor). The wall has the pipe lines. THe leak shows up after about 45 minutes, only when running the shower . I found some grout/caulk missing. i just re-grouted it. The leak still shows up after 45 minutes. its all grohe fixtures. and it is only 4 years old. what else do i have to check? I have some pictures in my the web link below. i would appreciate any advice from this forum's members. thanks in advance.
http://pg.photos.yahoo.com/ph/coolguy_4838/my_photos
http://pg.photos.yahoo.com/ph/coolguy_4838/my_photos