Keeping an overflow quiet

Discussion in 'General Reef Discussion' started by Oahu, Dec 5, 2017.

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  1. Oahu

    Oahu Senior Member
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    Since my reef tank is in my living room, the overflow is a bit loud. 90 gallon with a corner overflow. After I upgraded the return pump, now running a DC pump with about 975gph return. My siphon break has a smaller piece of airline tubing to act as a reducer so water is not gushing out and spraying everywhere. However, where my return comes out of the overflow, there is a 1/2" gap where water is flowing through and a higher rate. It's like a small waterfall. Any suggestions on how to quiet the overflow? I can upload a picture this evening if it helps.
     
  2. Ben Nicholls

    Ben Nicholls TCMAS Old Timer
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  3. OP
    Oahu

    Oahu Senior Member
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    The actual drain is completely silent. This being a Marineland drilled reef-ready tank, the return line comes up and goes through the weir. Because the cutout for the return is so big, it leaves a gap where water is flowing way too quickly into the overflow. I'm trying to figure out how to slow the water flow (about an inch gap) going into the overflow.
     
  4. Ben Nicholls

    Ben Nicholls TCMAS Old Timer
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    Possibly cut out an acrylic piece that could block some of the gap? Stuffing a piece of filter foam in the gap might also slow down an muffle the sound.
     
  5. cheezybuda

    cheezybuda I contributed!
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    DFS had a super coarse filter pad that I have wedged into my overflow. Not sure if they still stock it.

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  6. BEAV9900

    BEAV9900 Senior Member
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    Can you raise the water level in the weir so there is less of a drop?
     
  7. OP
    Oahu

    Oahu Senior Member
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    [​IMG]

    In between the loc line and the weir. Filter pad would work if I can find a way to keep it from falling-in to the tank or overflow.


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  8. David Grigor

    David Grigor TCMAS Old Timer
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    I'd personally convert to a herbie style.

    To answer you question though adjusting the stand pipe to increase the water level in the overflow thus reducing the water fall noise, use this fitting so you can adjust the height to whatever you want.

    [​IMG]
     
  9. OP
    Oahu

    Oahu Senior Member
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    Thank you for all the responses. I’ll see what I can come up with.


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