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Discuss Water pressure problem in the Plumbing Forum area at UKPlumbersForums.co.uk.

  1. leiadad

    leiadad GSR

    Hi could someone help me decide on correct mains water pump to use. I am doing some work for a guy who wants to increase his mains pressure. At the moment he has got a static pressure of 2 bar. At full flow he has a dynamic pressure of quarter of a bar at 26 litres per minute and is saying he is unhappy with this pressure. The flow he is happy with. He said at peak times his flow will go down to a dribble at some outlets, although I didn't see this as I checked during day. I checked flow and pressure straight from stop tap which is brand new. He has also just had new alkathine pipe put in. I was having a look at stuart turner pumps which have an accumulator attached. I don't think the accumulator would be needed much though as the flow is there anyway. It says in spec that it is 3 bar pressure and I wanted to know if this pressure is a dynamic pressure and also how would this work If going through combi. Thanks
     
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Yea something like a flow mate should work

    How much space you got ?
     
  3. leiadad

    leiadad GSR

    Got enough space I think m8. Have you fitted this pump before, did you notice a big difference when using pump before?
     
  4. leiadad

    leiadad GSR

    Also would you buy pump on its own or would you add in the accumulator
     
  5. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Yo can just buy a pump and put it on the mains your limited to 12lpm max if you pump it

    You need to buy the proper kit

    Stuart Turner

    If you have the space
     
  6. leiadad

    leiadad GSR

    Yeah that's ok as I am getting enough flow anyway, what kind of dynamic pressure would you be looking for shaun as a good pressure also how would you have checked the pressure and flow. Would you have done it the same way I did
     
  7. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    You can't pump direct from the mains eg by just putting a shower pump on the cold mains

    Flow and pressure standing
    Flow and pressure dynamic

    And I would install the system in my link
     
  8. leiadad

    leiadad GSR

    You can pump direct from mains using stuart turner pump
     
  9. leiadad

    leiadad GSR

    I don't know what you mean flow and pressure standing
     
  10. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    With just one outlet open eg the one your testing off

    Dynamic is having another one open while your testing
     
  11. leiadad

    leiadad GSR

    I thought standing was everything closed, is it not
     
  12. leiadad

    leiadad GSR

    I see what your saying but flow can't be checked while it is a standing pressure
     
  13. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    How you supposed to do the flow :D

    No but it's called standing flow and pressure test
     
  14. leiadad

    leiadad GSR

    You said earlier flow and pressure standing. Flow and pressure dynamic
     
  15. leiadad

    leiadad GSR

    What dynamic would you be looking for
     
  16. leiadad

    leiadad GSR

    Soz went a bit mad with buttons ha ha
     
  17. leiadad

    leiadad GSR

    What do you mean by you would install system in your link
     
  18. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    For a decent flow I would be looking around 15lpm dynamic
     
  19. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Post 5
     
  20. leiadad

    leiadad GSR

    What about dynamic pressure
     
  21. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    4 posts up
     
  22. leiadad

    leiadad GSR

    Yeah that is your flow but I am assuming that you would be looking at a particular pressure at the flow of 15 lpm
     
  23. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Yea around 2 bar dynamic
     
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