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  • FIRST POST
    • adiohead
    • By adiohead 13th Jun 19, 3:06 PM
    • 29Posts
    • 3Thanks
    adiohead
    Shower pump problem
    • #1
    • 13th Jun 19, 3:06 PM
    Shower pump problem 13th Jun 19 at 3:06 PM
    - Our en-suite shower pulses the pump during use with the mixer on hot.
    It runs on cold no problem.
    I changed the cartridge just in case but doesn't seem to be this.
    Any ideas?

    - The main shower cartridge broke recently and I changed that. But with the hot water feed to the pump on full the pump pulses after use, so I have to turn it down on the pump to stop this happening.
    Last edited by adiohead; 13-06-2019 at 3:44 PM.
Page 1
    • markin
    • By markin 14th Jun 19, 12:14 AM
    • 846 Posts
    • 692 Thanks
    markin
    • #2
    • 14th Jun 19, 12:14 AM
    • #2
    • 14th Jun 19, 12:14 AM
    It kind of Sounds like water hammer, just guess.
    • adiohead
    • By adiohead 14th Jun 19, 6:03 PM
    • 29 Posts
    • 3 Thanks
    adiohead
    • #3
    • 14th Jun 19, 6:03 PM
    • #3
    • 14th Jun 19, 6:03 PM
    So I've figured out it's only pulsing with the shower head on.
    If I take of the head off it pulses once when temperature is increased and then flows through fine.

    The shower spec is max 3 bar, and the pump is 3 bar.
    So I don't know why there would be back pressure, if that's the problem.

    The shower works fine on the body jets, it's just not wanting to work on the overhead with the shower head connected.
    • peachyprice
    • By peachyprice 15th Jun 19, 1:13 PM
    • 20,377 Posts
    • 47,244 Thanks
    peachyprice
    • #4
    • 15th Jun 19, 1:13 PM
    • #4
    • 15th Jun 19, 1:13 PM
    Have you tried descaling your shower head? If not enough water can get through it will cause the pump to pulse, same if the little filters in the pump connectors get clogged with limescale.
    Accept your past without regret, handle your present with confidence and face your future without fear
    • adiohead
    • By adiohead 17th Jun 19, 6:13 PM
    • 29 Posts
    • 3 Thanks
    adiohead
    • #5
    • 17th Jun 19, 6:13 PM
    • #5
    • 17th Jun 19, 6:13 PM
    Yeah, tried descaling. Didn't work
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