I have a Grohe shower assembly with a pressure balance valve and a floor spout. When I turn the water on, it comes out of the shower head as well as the floor spout, even though the diverter is set to the floor spout only. Also there appears to be a small amount of water leaking behind the shower wall as the drywall outside of the shower is wet (from the inside) where it meets the floor pan.
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Re: Grohe shower assembly leaking
Hiit sounds as though the diverter valve is sticking in the mid position although you have turned it to the floor spout as you call it!!
Also it sounds as though the seals are possibly leaking causing the plasterboard (drywall) to get we, or possibly a joint may be leaking. Advice access the pip-work valve etc run shower & check with torch (flashlight) to see where its coming from?
Rectification work replace seals/repair leak...replace diverter valve assembly.
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Make sure the hot water is turned back on. Pressure balancing valves won't work if both cold and hot water is not on. Pull shower head off and test to see how it flows out of the shower arm. If good, clear out shower head. Whenever water is turned off for a time, and then turned back on, restricting shower heads and aerators usually get clogged. In the future, always open up a tub spout before turning water back on. This releases the air and other debris most effectively before testing other fixtures in the house.
Likely a blockage in the line. Corrosion or other damaged parts. Try cleaning the filter screen first. Check for normal water flow without the shower unit attached to the spout. If OK, then the unit is the issue.
the diverter is stuck. you have to move it up and down to free it up. the diverter is the mechanism attached to the tub spout that switches the water from shower to tub. you may also need a new diverter if fiddling with it doesn't work.
If it is dripping from the connection where it goes to the water spout you can unscrew the connection and wrap teflon tape or Pipe Joint Compound on the Threads. Now you can Thread the Shower Head Back on, with No Leak. IF..... It is leaking from the Shower Head Itself There May Be a Problem with the diverter handle/lever. If it has a Pull Type Lever, sometimes you can screw the Lever up or down for the proper water restriction to the Shower Head. However if the Hot and Cold Handle/Lever is OFF, There should not be any Water coming out from anywhere! If water is coming out off the Tub Spout, with the Shower Off, then you will have to replace some washers or Cartridges in the faucet(s) to stop the dripping. You can do this easily....Just Ask) Remember though, that some shower Heads may Drip for a Few Minutes After they are Turned off. There is still water in the Supply neck and needs to escape, either though the tub Spout or Shower Head.......Hope this Solution Helps you with your Drips.....Joe
I would check the strainers on the intake and the faucet spout. It is possible that sediment has built up and now is impacting thermostatic flow from the faucet... if one side is clogged its hard for the faucet to balance... try the stainer on the spout and any other strainers that may be on the supply hoses, valves, intake, etc...