12-17-2009, 11:15 AM
I have a leak in the area of a Grohe shower valve. Is there a way I can confirm it's the cartridge before I replace it? This valve was purchased/installed in 1994, so no warranty replacement. The leak is very slow and seems to be worse when my son showers, I can't figure out why. Could it be anything else than the cartridge? Is there a way to visibly check it?