Gurgling noise in overflow box (the air intake hole of pipe # 2) -diagram included

Discussion in 'Lighting, Filtration & Other Equipment' started by MarshallPlacid, Jul 10, 2011.

  1. MarshallPlacid

    MarshallPlacid

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    Hello fellow hobbyists.

    I need some help and I hope anybody here can help me.

    It is the very annoying LOUD gurgling noise problem with my overflow filtration system.

    Tank specs:
    187 gallons with one overflow into a sump with a 5 box type filter (a filter system with 5 separate compartments of water) with 2 drainage pipes
    Pump is 900 GPH Einheim (spelling) pumping back out from one hose/pipe system.

    FINDINGS: the gurgling noise is coming out of the air intake HOLE of pipe # 2 (see diagram below).

    I attached a picture of the current configuration and some solutions I already tried including:

    1- Attaching air intake hose (3 ft) into air intake hole for pipe # 2. Gurgling noise stops, but pipe 1 stops working, so the sump only has 1 pipe draining instead of 2 pipes (which is a requirement).
    2- Lowering the ball valve so that only a little water flows out from the sump back into the tank. Gurgling noise stops. Both pipes 1 and 2 works and drains water. BUT, the pump is overtaxed because backward pressue is being forced back into the pump because the ball valve is almost 90% closed to only allow a little water back into the tank. This broke my first pump after 2 or 3 days. So, adjusting the ball valve does not solve the problem. It will only break the pump after a few days. Also, the GPH flowrate will be so low as to make the fish tank become unhealthy. I need at least a 4 or 5 times turnover rate for the fish tank filtration system.

    What other solutions are there to this annoying problem?

    I have tried asking my local saltwater fish store for help and the fish tank seller for help. No one has been able to help me. The manager of the store is on holiday, so I have to wait 2 weeks. I want to solve this problem now, with the help of this forum and the participants.

    I sincerely appreciate any comments, help, or tips you can give me.

    gurglingnoise.jpg
     
    MarshallPlacid, Jul 10, 2011
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  2. MarshallPlacid

    over my head

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    Re: Gurgling noise in overflow box (the air intake hole of pipe # 2) -diagram include

    in reducing the effluent from the sump it should also raise the level and if that stops the noise try raising the water level in the sump? or make the air intake bigger
     
    Last edited: Jul 10, 2011
    over my head, Jul 10, 2011
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  3. MarshallPlacid

    little_fish Moderator

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    Re: Gurgling noise in overflow box (the air intake hole of pipe # 2) -diagram include

    I cant really help you, but Hello and Welcome!
     
    little_fish, Jul 10, 2011
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  4. MarshallPlacid

    MarshallPlacid

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    Re: Gurgling noise in overflow box (the air intake hole of pipe # 2) -diagram include


    If I make the air intake bigger by drilling a BIGGER hole into the existing air intake hole, do you think that will make the noise go away?
     
    MarshallPlacid, Jul 10, 2011
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  5. MarshallPlacid

    over my head

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    Re: Gurgling noise in overflow box (the air intake hole of pipe # 2) -diagram include

    all you can do is try you might try getting some extra pipe and redesign the over flow intake, try you tube to get some ideals
     
    over my head, Jul 10, 2011
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  6. MarshallPlacid

    tzevchik

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    Re: Gurgling noise in overflow box (the air intake hole of pipe # 2) -diagram include

    A bigger hole should help. I had a similar problem with the plumbing in my return box, and a bigger whole solved the problem. Good luck.
     
    tzevchik, Jul 15, 2011
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