Urgent help needed Overflow not flowing

Discussion in 'Urgent Help Needed' started by Fishcrazy, 2 Jan 2017.

  1. Fishcrazy

    Fishcrazy Thread Starter

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    Thank you @RiaanP for the advice.
     
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  3. JCL

    JCL

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    Well, if you need help, send me a pm with your number and address
     
  4. Fishcrazy

    Fishcrazy Thread Starter

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    Hi Riaan this is the unit. I'm going to buy parts now. Do you think I must somehow remove some of the last bends to? From the T down thwre is 3 bends. Can I put the T in the doenpipe from the tank straigt down to the sump? And maybe a control valve in? And sommmer do away with the first U in the tank and make it as the video?
    [​IMG]
     
  5. RiaanP

    RiaanP Moderator

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    The only thing you need to do is to re-position the T piece higher.
     
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  6. Fishcrazy

    Fishcrazy Thread Starter

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    Cool thank you Riaan
     
  7. Fishcrazy

    Fishcrazy Thread Starter

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    Job done. I've repositioned the T. And took the first U away.
    [​IMG]

    I've inserted it in the tank and fill up the second U to the T and the start everything up. To my disappointed no flow. In theory the water should be pushed up the pipe and gravity should do it's thing.

    What can be the problem now?
     
  8. hotdog83

    hotdog83 Clone Fish

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    Which way does one way air valve go? Out or in?
     
  9. Rash

    Rash

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    I think you should off moved the air valve as illustrated in the photo first.
     
  10. RiaanP

    RiaanP Moderator

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    As it is now, when that thing do run, and the power goes out, then it will drain your rank all the way to then bottom end of the inside pipe.

    Anyway, Did you suck out the air?
     
  11. Fishcrazy

    Fishcrazy Thread Starter

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    Sorry Riaan ... I wasn't very clear.. It stands in a bigger pipe...
    [​IMG].

    [​IMG]
    Yes I did suck out the air till I got to SW.
     
  12. RiaanP

    RiaanP Moderator

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    OK, was the outer pipe inside the tank, top end under water?
     
  13. Fishcrazy

    Fishcrazy Thread Starter

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    Yes it was as per the below pic. Outer pipe the white one. The water rose over the pipe and filled it with water. I think the watwr didn't push up the other pipe towards the N bend. Although I did suck out air and then water at the N bend.
    [​IMG]
     
  14. Fishcrazy

    Fishcrazy Thread Starter

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    I can suck air out, but not in
     
  15. JCL

    JCL

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    Not correct, bigger pipe or not.
    The purpose of the outside T is to limit the water dropping further regardless of the length of the inside downpipe.
    The upper leg of the T is open so air will move down as the tank level is dropping and the flow will stop when the water level gets to the horizontal level of the T. Once the tank fills up again, the flow will restart.
     
  16. hotdog83

    hotdog83 Clone Fish

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    Now the question is, is that pipe that goes up by the T indeed open on top? Seems it has an end cap on.
     
  17. Fishcrazy

    Fishcrazy Thread Starter

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    If i leavr it open the water raise pas the intake pipe level.. Of I cloae ot it makes a vauum and gravity does it thing for a few. But then suddenly... That also doesn't work... If fled everything twice already
     
  18. irie ivan

    irie ivan

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    Just
    Drill
    The
    Tank
     
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  19. hotdog83

    hotdog83 Clone Fish

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    Agree, just drill on the side while lowering the water level a few cm's for a few minutes. It would have saved you hours and hours of time wasted. :tt2: If you were in jhb I would have helped you, it takes literally 10 minutes start to finish.
     
  20. Fishcrazy

    Fishcrazy Thread Starter

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    I know being in CT doesn't help. Not so many people that can help around. Someone is going to pop on later today so hopefully we can sort it out. What is weird is that the system has been working for over 2 years now, this is the 1st rimw that I had such a big problem with it.
     
  21. hotdog83

    hotdog83 Clone Fish

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    Did any of the pvc joins maybe come loose letting air in?
     
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