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Discuss Flow + Pressure Test in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. Stants

    Stants Member

    Hi
    Just done a Flow and pressure test
    Flow 3,3 L in 10 secs =19.8
    ( did it 3 times pretty consistent)
    Pressure 4 Bar
    This however was at kitchen sink downstairs but looking to install Unvented Cylinder ( santon or Mega or similar) in loft ( servicing 1 bathroom + 1 onsuite ) will/ is this going to decrease by much going up approx 5.3 mtrs ( 2 storeys ) I think the pressures ok but the Flow may be on the cusp ?? Any thoughts
    Thanks
     
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Aslong as the mains is done in 22mm from the stop tap you will be fine
     
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  3. townfanjon

    townfanjon Trusted Plumber GSR

    You loose 0.1 bar per meter so you would still be ok pressure wise . Sorry not totaly sure how you have done your flow test .
     
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  4. Stants

    Stants Member

    The flow I filled a bucket for 10 seconds
    The amount was 3.3 Ltrs so 3.3 x 6=19.8 in 1 minute I think that's how it's calculated or is that a bit Heath Robinson lol
     
  5. Stants

    Stants Member

    Are you saying mains from Street stopcock or house stopcock
     
  6. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    house
     
    • Like Like x 1
  7. Stants

    Stants Member

     
  8. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    best way to, else the drop might be too much
     
    • Like Like x 1
  9. Stants

    Stants Member

    Do you think the flow will be enough ?
     
  10. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    if you run it from the mains in 22mm yes and use as many formed bends as possible
     
    • Like Like x 1
  11. townfanjon

    townfanjon Trusted Plumber GSR

    Never seen it done that way but yes I see how its done .
    Sorry I have to ask , are you installing this cylinder
     
  12. Stants

    Stants Member

    No no no just finding out what can / can't / needs to done
     
  13. Stants

    Stants Member

    Is there another / more accurate way to test the flow
     
  14. townfanjon

    townfanjon Trusted Plumber GSR

    I can understand you doing some groundwork pal , but please make sure somebody is G 3 qualified to install it if you go ahead
     
    • Like Like x 1
  15. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    other than a flow cup no
     
    • Like Like x 1
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