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Old 08-21-2008, 10:43 AM   #1
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Sleekest,Quietest HOB Overfow?

Hi,

I would appreciate suggestions of HOB overflow boxes rated for 150+ Gallons.

The features I`m looking for are the best combination of quietness and minimum protrusion both in and out of tank.

This one has been suggested. Pricewise and Dimensionwise it seems perfect. I`m concerned about the noise level. Is this a classic "U" design Overflow. Net posters sometimes complain about their noise.

http://www.drsfostersmith.com/produc...m?pcatid=18358

thanks again---
I`m picking up the 120 tank and stand today!
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Old 08-21-2008, 12:08 PM   #2
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That is what I use on my 120g tank. (actually 2 of the PF-1200's) They are much quieter then my old setup but I can still hear them. You are going to have water sounds with a tank, unless you have it behind a wall and your sumps are in a basement.
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Old 08-21-2008, 12:18 PM   #3
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The fans of light fixture make more noise than the built in corner overflows on my 125. At lights off there is just a slight, but pleasing sound of gurgling water. That comes from the tank, not the sump which is almost quite with the doors closed. There is just a slight hum of the pump coming from there.
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Old 08-21-2008, 05:22 PM   #4
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I have that overflow and in an effort to make it a little more quiet, my plan was to cover the box with an acrylic cutout that would fit on the open top part like a lid. My plan was to make a cardboard cutout and then take it to Lowes or home depot and get it cut as an acrylic piece. After I made the cardboard cutout, I put it in place and that alone made a big enough difference that I just left it there and didn't even need to get the same cutout in acrylic. The cardboard alone already cut out lots of the noise that it makes. Of couse there still is some noise though.
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Old 08-21-2008, 06:22 PM   #5
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Almost any time you have an overflow you`ll experience some noise. Water cascading over the overflow will make a little noise. When I had my 55 I had that overflow and it did not make alot of noise but it did a little.
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Old 08-21-2008, 07:03 PM   #6
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This is what I used to use to keep my hob overflow dead silent.
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Old 08-21-2008, 07:16 PM   #7
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What is that you built there cccapt, how did you do it? And what is the black wire thing going into the overflow that is seen in the back part of the picture?
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Old 08-21-2008, 07:19 PM   #8
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It makes the overflow quite. It is a plastic cup with airline hose in it for air. The wire looks like a ph wire...or I could be wrong....
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Old 08-21-2008, 07:20 PM   #9
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That is a plastic cup with a hole in the top for a piece of airline. The black cord is probably the power cord for a ph...it's not in the overflow.
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Old 08-21-2008, 08:35 PM   #10
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Dont keep us in suspense Larry. What are you doing in the pic? What`s doing what?
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