Problem with mixer tap :(

Discussion in 'Tech/Mech General' started by activecampers, Sep 8, 2009.

  1. activecampers

    activecampers Read Only Funster

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    Hi

    We have a mixer tap in our bathroom for the shower. A single lever type which I believe isn't thermostatic - simply a mixer.

    Of recent, if we get the temperature right, then turn off the tap, then turn it back on again the water varies between very hot and very cold making taking a shower a bit of a challenge. It never used to do this so not sure what is causing it.

    We did fit a trigger shower head so thought it may be due to this being "off" allowing the "on" tap to push hot up the cold pipe and vice versa, but leaving the trigger "on" and just using the tap on/off and its still bad (though not as bad as with trigger head).

    Could using the trigger head have forced water the wrong way through the tap and broken something?

    Or any other ideas?

    System is pressure-switch type and the tap may be a Whale Elite shower mixer tap

    Thanks
     
  2. hilldweller

    hilldweller Funster Life Member

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    Sounds a very good analysis to me.

    Problem is hot goes via boiler, cold direct so if not free flowing at the mixer I guess there is a lot of scope for the cold to block the hot.

    Easy test, unscrew the new head - or the whole pipe if it came with a new pipe that might be smaller internally.
     
  3. activecampers

    activecampers Read Only Funster

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    Cheers Brian

    Its just a new head. And just leaving the head "fully on" still has the same issue. I don't have the old head as it was virtually broken and its at home (I'm in Millau at moment!)

    The kitchen mixer is fine....

    Will test without head later.
     
  4. Terry

    Terry Funster

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    Hi it is just a case of adjusting the shower-- cold pressure is taking over -- turn on hot fully then very slowly the cold (not much) once you have the right temperature mark the position and remember for next time :thumb:
    terry
     
  5. hilldweller

    hilldweller Funster Life Member

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    Moi ? Green with envy ? No, you must be mistaken.

    Have you visited the glove factory yet ? Sit down and before looking at the prices. And have you got a dog to wash ?
     
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