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Replacing existing show pump In loft

Discussion in 'Plumbing and Central Heating' started by Plagueof1, 24 Nov 2018.

  1. Plagueof1


    24 Nov 2018
    Thanks Received:
    United Kingdom

    Looking for a bit of advise before next step.

    Moved in earlier this year. House is 4 bed, 1 bathroom 2 ensuites.
    Extension has 1 of the ensuites which has a shower pump lovating in the loft above.

    I’ve attached a basic,but hopefully clea, diagram of how the shower/pump is plumbed in.

    Shower is a mira excell pre 2003

    Pump is wickes twin impeller 1.5 bar.

    Recently i’ve been having problem with the shower not getting hot, warm-ish but not comfortable enough for a shower. Even when turned right up.

    I have 2 questions.

    1) Is the problem with my shower the pump (which is quite noisy) or the showers thermostat?
    - i’d like to add that the pipe after the pump does seem hot/warm when running.

    2) i’d like to replace the pump with something quieter. Looking at the way its plumbed in and installation instructions on other pump models, i get then impression it’s not been done correctly. Can someone confirm if this the case?

    Apologies for the long thread, I appreciate you reading and your replies.

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  3. terryplumb


    8 May 2017
    Thanks Received:
    United Kingdom
    If the shower worked well with the existing pumped set up when you moved in ,but now does not give water as hot as it used to ,then its the shower valve thats the problem. As its 15 years old ,fit a new one.
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