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Just wanted to post and thank everyone for their kind help. We have sorted out our screaming tap by fitting a pressure relief valve after the cold main. This has stopped the tap screaming and has dropped the pressure to 3 bar. Unfortunately we have lost a little flow from the taps, and...

It doesnt actually say anywhere in the manual that came with the tap that a prv should be fitted. I just noticed that in the diagram of my setup it has one after the stop tap. It says about a prv being fitted on anything over 3 bar in the updated manual which I downloaded online as i couldnt...

Hello all...because of the problems with the plumber..I brought the pressure tester myself and it is telling me that the cold mains pressure is a shade under 5 bar. In the manual for the tap it says a prv should be fitted if pressure is over 3 bar. Should i fit the prv on just the cold side...

Yeah I know...he says that he hasnt got one of the gauges to do the test so I am starting to loose faith. I seem to be doing all the leg work. The manual does clearly show a PRV fitted after the stop tap in our setup. I suppose I have to fit one regardless of if it sorts it out as they will...

Hello all I really need some advice. Had a plumber replace my bathroom last August and he fitted a Hansgrohe Marin Centostat Bath/Shower/Mixer. Since it was fitted when you have the temperature between hot and cold it makes a high pitched whistleing noise. You can stop this by gripping the...