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    stiff shower valve



    I have a problem with my shower valve. The thermostat is stiff, thus is difficult to adjust the hot/cold water.

    From producer website the product is described as: "twin outlet triple control concealed thermostatic valve with ABS coverplate" (

    I need an expert opinion, but I assume the work needed is:
    - either check if there is any lime scale and try to clean it
    - either change the showervalve is the limescale cannot be removed.

    Anybody able to help me with this?

    Thank you,

    Asked by George on 27th Aug 2019
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    Best Answer


    "Yes, it is very hard to clean inside. You must soak overnight in descalant but it will discolour the device. Best to change."

    Answered on 1st Sep 2019 - Member since Aug 2019 - report
    SBA Maintenance

    "Hi, the thermostatic valve will have to be changed it is very hard to clean as it’s a concealed unit and it’ll be time-consuming to remove limescale and the unit would have to soaked in descaler over long period. I believe changing the unit would be a cheaper option and will have a smaller timescale.

    SBA Maintenance"

    Answered on 27th Aug 2019 - Member since Jul 2018 - report
    Profile Plumbers

    "You will need to contact the manufacturer and buy a new cartridge"

    Answered on 17th Sep 2019 - Member since May 2018 - report

    "Hi. By the sound of it looks like your valve needs changing. Its complicated to clean the current one, best to get a new one in. Hope that helps."

    Answered on 28th Feb 2021 - Member since Dec 2020 - report
    Bubbles Plumbing & Heating

    "I would suggest changing the valve as seems like it is seizing up and we need replacing"

    Answered on 10th Nov 2020 - Member since Oct 2018 - report

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