Guest
Best to test the pipe work, I have a pressure gauge that I connect to the rose outlet, turn on the tap then turn it off, if the pressure drops then there is a hole in the pipe. You too can do this, a cheaper but less efficiant way is to cap off the rose outlet and turn on the water and listen very closely to the wall for a hissing sound to show a leak. but the gauge is the best idea. If its leaking then replace all of the assembley, if it went in one place odds are it will do it else were in the line too.
