Pump airlock problem

Discussion in 'Pumps and Waterflow' started by madmike, 24 Dec 2012.

  1. madmike

    madmike

    Joined:
    10 Aug 2011
    Posts:
    56
    Likes Received:
    0
    Location:
    Edenvale
    Hi guys

    Could someone please help me? Iv got a pump sucking water out from my tank to my sump, but if the water level drops below the intake pipe it sucks air. Does someone know if there is a way to auto prime the pump?
     
  2. AdS Guest




    to hide all adverts.
  3. dallasg

    dallasg Moderator

    Joined:
    14 Dec 2008
    Posts:
    16,801
    Likes Received:
    588
    Location:
    Sandton
    internal or external pump?

    when the pump sucks air or stops, there should be some back siphon that will add water...

    sounds like water level is running to low
     
  4. OP
    madmike

    madmike

    Joined:
    10 Aug 2011
    Posts:
    56
    Likes Received:
    0
    Location:
    Edenvale
    External.
     
  5. OP
    madmike

    madmike

    Joined:
    10 Aug 2011
    Posts:
    56
    Likes Received:
    0
    Location:
    Edenvale
    No back siphon as the pump suck water out of the tank so works like a overflow just been sucked instead of free flowing.
     
  6. dallasg

    dallasg Moderator

    Joined:
    14 Dec 2008
    Posts:
    16,801
    Likes Received:
    588
    Location:
    Sandton
    it shouldnt really run dry... is your sump above your tank?
    what you can also do is where the pump intake is, add a 90° elbow and face it down, so that it draws water very low
     
    Last edited: 24 Dec 2012
  7. OP
    madmike

    madmike

    Joined:
    10 Aug 2011
    Posts:
    56
    Likes Received:
    0
    Location:
    Edenvale
    No my sump is below my tank. There is a straight pipe, then a 90 elbow then a straight pipe then a 90 elbow then a straight pipe don to the pump.
     
Recent Posts

Loading...
Similar Threads - Pump airlock problem Forum Date
Aqua Medic Blue 1000 skimmer pump hardly producing bubbles Protein Skimmers, Mechanical Filtration Thursday at 11:15
[wtd] Jebao Return Pump Wanted 6 Apr 2017
Advice on Jebao DC pump and plumbing a new tank Pumps and Waterflow 6 Apr 2017
[wtd] Broken Bubble blaster hy5000s pump Wanted 31 Mar 2017
Skimmer Pump Maintenace Protein Skimmers, Mechanical Filtration 24 Mar 2017
[wtd] Circulation pump Wanted 21 Mar 2017
[wtd] Big Airpump, 70L or similar size Wanted 19 Mar 2017