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Shower Mixing Valve Passing?

  • 10-11-2022 1:02pm
    #1
    mp3ireland2
    Registered Users, Registered Users 2 Posts: 1,836 ✭✭✭


    Hi,

    I'm not used to using a shower with a mixing tap and sometimes find it hard to keep at a constant temperature. When the tap is turned up near the top heat setting, the inlet of the cold water also feels hot. Would this be normal for the mixing valve to pass a little?

    It's a shower using hot water from immersion, with water pumped to the shower.

    Full disclaimer I'm sort of looking for an excuse to upgrade to a rain shower head / normal shower head combo. So if i thought it was the mixing valve leading to poor temperature control it would be a good excuse!



Comments

  • #2
    standardg60
    Registered Users, Registered Users 2 Posts: 5,175 ✭✭✭standardg60


    It's the pump that's the issue as it's creating a pressure difference between the hot and gravity fed cold, forcing the hot water back along the cold feed. You're always going to get temperature fluctuations then.

    You'd need to fit a pump to the cold supply too.



  • #3
    mp3ireland2
    Registered Users, Registered Users 2 Posts: 1,836 ✭✭✭mp3ireland2


    Thanks I have a plumber coming to put a radiator valve on this week so I'll get him to check what the current set up is. What would you say the ballpark would be for adding that? Couple of hundred quid? Would it be common up have a pump on the cold do you know? Or am I being fussy? I had seen you can get dual pumps which pump both.



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