Mixer tap shower temperature

Over the last few months my shower temperature has noticably dropped. Its a wall mounted device with a single controller knob, the further it turns the hotter it is. I've gone from a 3/4 turn for a good temperature to 100% plus increasing the boiler set temperature. Living in a hard water area i'm thinking that there has been some scale forming in the hot pipe. Is there a way to descale the internals without causing damage, i.e. pour in vinegar from the shower nozzle?

4 Answers

Kingswood uk
0 Reviews
Likely the internal cartridge that regulates the temperature has limescale build up and this is causing your temperature to be irregular in the shower head
7th Dec 2019
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Hd5 builders ltd
0 Reviews
I think the thermostat mechanism internally could be on its way out maybe more effective to replace the unit
29th Jan 2020
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It's probably the thermostatic valve on the mixer
16th Jan 2020
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JK Powerflush UK - Plumbing & Heating
3 Reviews, 100% Positive
There is a way of servicing these showers , by purchasing a service kit for them , the only problem is , if the thermostat is scaled up , removing the scale with vinegar/scale remover or similar then this may not solve the problem as the thermostat itself may now be at fault from the long term effects of the scale . Best Option: replace thermostat if thermostatic if not , replace valve itself
13th Feb 2020
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