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Pulsing shower pump

Discussion in 'Plumbing and Central Heating' started by Eddy G, 5 Apr 2021.

  1. Eddy G

    Eddy G

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    I have fitted a dual impellor shower pump at the bottom of the hot water tank. there is a hot offtake on the tank out let. cold water is direct from cold tank.

    the pump/shower starts ok but starts pulsing when the hot water comes through.

    i can over come this by turning on the cold water in the bath which is fed from the same pump.

    how do i over come the pulsing.
    is the pump too big ?
    the hot outlet is not directly on the top of the tank - is this the problem ?

    thanks for any help
     
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  3. Gasguru

    Gasguru

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    Post a pic of the cylinder takeoff etc. sounds like it may be excessive air entrainment.
    Is it a centrifugal or regenerative (peripheral) impellered pump?
     
  4. fixitflav

    fixitflav

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    Some people pay extra for that feature :)
     
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