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Discuss New shower problem in the Bathrooms, Showers and Wetrooms area at UKPlumbersForums.co.uk.

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  1. Thermoman

    Thermoman New Member

    I Fitted on shower to a tank fed ch system
    Put a 22mm feed from cold water tank and a 22 mm feed from the hw cylinder
    To a new salamander 2.6 negative feed shower pump which is in the airing cupboard
    From the pump both hot and cold feed going to the shower itself go along the landing about 10foot and about 3 foot up the wall
    The bottom of the cold water tank is about 8 foot higher than the top of the shower head
    The problem is the shower runs for about 10 mins then stops and will not start again until I remove the pump hoses and put them back on again
    I have checked the filters for dirt and all checked the pipework and they have a good flow in to a bucket
    Has any one got any ideas
    I don't think it's draining the cw tank
    I haven't put a bleed nipple in the loft for the cold water which I am thinking of doing
    And the hot water flows fine
    Thanks
     
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Did you fit an s flange to the hot water cylinder?
     
  3. Thermoman

    Thermoman New Member

    No
    Just came came off the top of the cylinder with a tee piece and gate valve
     
  4. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    That's probably your problem the hot side is sucking air in

    Do you have to crack the hot nut on the pump to get it back ?
     
  5. Thermoman

    Thermoman New Member

    No take the cold pipe off the pump which contain some hot water to the shower when drained it starts again
     
  6. Matchless.plumb

    Matchless.plumb Trusted Plumber Top Contributor!!

    Perhaps because you have got a couple of pics for us
     
  7. SimonG

    SimonG Trusted Plumber

    How bigs your water tank in the loft?
     
  8. Thermoman

    Thermoman New Member

    Not 100% sure but I think it's a standard size
    It's fairly old
    It's at my daughters when I go round I will have a look
     
  9. Thermoman

    Thermoman New Member

    I went this morning switched on the shower it stopped after 30seconds
    There don't seem to be much cold water coming to the shower
     
  10. Harvest Fields

    Harvest Fields Trusted Plumber GSR Top Contributor!!

    Is it a salamander by any chance? I've Had a few faulty sensors recently
     
  11. Thermoman

    Thermoman New Member

    Yes it is a salamander pump
     
  12. FG28

    FG28 New Member

    Im pretty sure it should be positive head and the rubbish pump not helping ,. Prob over heating after running for 10min ,. Stuart turner , get what you pay for ,.
     
  13. Thermoman

    Thermoman New Member

    Fitted a s flange
    Everything seems ok at the moment
    So we shall see
    If anything changes I will let you know
    Thanks
     
    • Agree Agree x 1
  14. Thermoman

    Thermoman New Member

    Well the s flange still hasn't sorted the problem

    Hmmmm
     
  15. FG28

    FG28 New Member

    Im pretty certain you got the wrong pump in ???!!!
    Why negative head ?
    Its below the cws from what you said earlier ?
    So positive head pump needed .
    Just take it back as faulty , get a refund and buy a positive head Stuart turner ,.
     
  16. Thermoman

    Thermoman New Member

    Sorry did I say negative pump I ment it's a positive head pump
    Fitted. (Duh)
    When you run the shower it runs for about 30sec then cuts out
    When you turn the shower from the cold setting or mixed hot and cold on to hot setting it starts up again for about 5 seconds
    Then gets less and less then stops
     
  17. Thermoman

    Thermoman New Member

    Just a thought
    What about a pressure reducing valve ?
     
  18. FG28

    FG28 New Member

    Id try a new pump , sounds as if its all plumbed ok , not the best pumps , that 10min showers prob gazumped it
     
  19. Thermoman

    Thermoman New Member

    I think I have sorted it
    Took off the thermostatic shower of the wall connected a hose to the cold feed turned it on and there was no water
    Coming out
    With pump running
    After about 20 seconds it spluttered
    Then trickled then full bore
    So looks like it was a air lock
    Fingers crossed
    Thanks for the help
    Thermoman
     
  20. Thermoman

    Thermoman New Member

    Guess what?
    Yes it's packed in again
    It seems to be sending hot water to the cold side of the pump
    I took of shower taps hot dribbling from cold pipe
    The taps are Burlington Eden

    IMG_1258.JPG
     
  21. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    any chance of a pic of the pump and pipework ?
     
  22. turnpin

    turnpin Trusted Plumber

    Check the manufacturers instructions and install accordingly or any guarantee in regards of the pump will be void...it may also resolve your problem...regards Turnpin
     
  23. Thermoman

    Thermoman New Member

  24. Thermoman

    Thermoman New Member

    The left hand side of the pump is cold in and cold out
    And the right hot water n and out
    The hot water is fine. But the cold just dribbles out

    The other pic is hot out from cylinder with s flange
    And 22mm pipe from cold water tank

    IMG_9396.JPG

    IMG_9397.JPG

    IMG_9398.JPG
     
  25. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    I would say the flex is restricting the water a bit and doesn't help
     
  26. Thermoman

    Thermoman New Member

    It's not as bad as it looks
    I have manually held it so there is definitely no restriction
    But it is still the same
    It worked fine for about 3-4 days using it it twice a day
    Then it just stops
     
  27. FG28

    FG28 New Member

    Agree , all in 15 too ,
    Id undo the top 90 so you just got the one facing up , buy some plastic pipe , £5 , shape it into a shortish U and from the 90 into the pump ,.
     
  28. Dkdc71

    Dkdc71 New Member

    Can you isolate the feeds and run two pipes from live side to bath and see how your flow is hot might be fine seen a similar job before and impeller had broke on one side only real way to eliminate the pump and pipework after that blockage in that nice shower possibly
     
  29. Thermoman

    Thermoman New Member

    Ok
    The first thing I will do is alter the pipework on the flexi
    If that don't change any thing I will remove the pump again
    To see if the flow is ok
    I will let you know
     
    • Like Like x 1
  30. plumbersm8

    plumbersm8 New Member

    Hi,

    if you have a positive head pump there are two things you need for these to work, the first is the distance from the highest point in the system to the bottom of the cold water storage which it sounds like you have.

    you also need a natural flow of water through the outlet which for salamander is 2 litres per min hot or cold and 4 litres per min mixed.

    To test this you would :


    1. turn the power off to the pump

    2. get a litre measuring jug

    3. with the shower head in the normal position

    4. turn it fully hot and time how long it takes to fill 1 litre

    5. do the same for fully cold

    6. then on a mixed setting time how long it takes to fill 2 litres

    to be able to use a positive head pump you would need to be able to get the above measurements in 30 seconds or less separately, if you haven’t got this you would need a negative head.

    as above I would straighten the hoses to aid flow
     
  31. Thermoman

    Thermoman New Member

    Thanks
    When I get round to it I will alter the cold pipe 1st
    And try it if no better then will try your test
    When you say turn pump off will the pressure of the water activate the reed switch?
     
  32. plumbersm8

    plumbersm8 New Member

    You need to turn the power off to measure the natural flow as this is what starts the pump.

    You could have a really good positive head say 5 to 6m but if the flow of water isn't fast enough through the shower head it wont lift the float so the pump wont come on.
     
  33. Thermoman

    Thermoman New Member

    I will try it and see what happens
     
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