Page 2 of 2 FirstFirst 12
Results 26 to 30 of 30

Thread: pump issues

  1. #26
    Thailand Expat
    Airportwo's Avatar
    Join Date
    Mar 2006
    Last Online
    Today @ 10:30 AM
    Location
    Flat Earth
    Posts
    3,704
    Quote Originally Posted by Horst View Post
    I also re-measured and the suction depth is around 1.5m,
    Does it stay full all the time? most places they only turn on the water for a few hours each day, if they do level will drop and suction lost.
    Let us know what a real plumber thinks
    Cheers

  2. #27
    Newbie

    Join Date
    May 2019
    Last Online
    07-11-2019 @ 08:31 AM
    Posts
    6
    Quote Originally Posted by Airportwo View Post
    Does it stay full all the time? most places they only turn on the water for a few hours each day, if they do level will drop and suction lost.
    Let us know what a real plumber thinks
    Cheers

    always full, we are lucky. I'll keep u posted

  3. #28
    Newbie

    Join Date
    May 2019
    Last Online
    07-11-2019 @ 08:31 AM
    Posts
    6
    good morning fellow plumbers,
    after lots of huffing and puffing by an international plumbing crew (Thai/Burmese/German) the following issues/results can be reported:
    check valve at the pipe end (tank) cleaned, but seemed to be ok ==> works
    pump still did not build up enough pressure! ==> pipes checked and sealing tape renewed where possible. Air relief valve O-Ring checked and cleaned, and sealing tape applied to the valve screw thread
    Pump works, builds up pressure, all seems to be good and no issues with suction (pipe is 1.5m down the tank, 0.5m more than what's recommended by Grundfos.
    Seems like there was air somehow coming into the system, combined with fai dab for an hour resulted in pump failure... and when I tried to refill the pump could not get the pressure working bc it was sucking air from either a pipe not being properly connected or the air relief valve was not closed properly.
    Or - something completely different which we accidentally now fixed without knowing, the luck of the accidental plumber...
    Thanks again for all your help, great forum
    best Horst

  4. #29
    Thailand Expat VocalNeal's Avatar
    Join Date
    Jul 2007
    Last Online
    Today @ 11:12 AM
    Location
    Bangkok
    Posts
    11,404
    We like a result
    Better to think inside the pub, than outside the box?
    I apologize if any offence was caused. unless it was intended.
    You people, you think I know feck nothing; I tell you: I know feck all
    Those who cannot change their mind, cannot change anything.

  5. #30
    Thailand Expat
    Klondyke's Avatar
    Join Date
    Aug 2014
    Last Online
    Today @ 10:22 AM
    Posts
    5,994
    Quote Originally Posted by Horst View Post
    I tried to refill the pump could not get the pressure working bc it was sucking air from either a pipe not being properly connected or the air relief valve was not closed properly.
    Cherchez l'air...

    (and keep the thread alive)

Page 2 of 2 FirstFirst 12

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •