This question is regarding Bristan Acute Thermostatic Surface Mounted Shower Valve with Adjustable Riser - Shower Spares

Bristan AcuteThermostatic Surface mounted shower

Hi I have a customer with this shower that seems to squeal when in use. The shower works fine; it just has this squealing noise when in use. Any ideas??
Asked 7 years ago by Paul
Most likley uneven pressures.

High pressure cold and low pressure hot

When the hot water is running and you only need a little cold to get the right temperature the cold port in the valve is only open just a little what you are hearing is the sound of the cold water squeezing through a very small gap.

The sort off proof is changing the temperature will change the note.

Greasing the internal components may help or fitting a pressure reducing valve.

www.showerdoc.com/the-shower-doctor-silicone-grease-30ml-tub-mcsilicone

Answered 6 years ago by George Thomson

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