Help with gurgle noise !

[kmcochran0010]

Hello everyone. So I purchased a tank someone had already pre drilled. I tried measuring the box I had from glass holes and was going to use it. But the previous owner drilled it too high for that to be possible. So I set the tank up and did not know how loud the gurgle / slurping noise would be in the overflow. How do I quiet this thing down? ANY HELP APPRECIATED !!

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[BigBlueTang]

Oof. This is going to be brutal. I don't see how you can change this. My first thought was going full siphon, but the only problem is you don't have an emergency drain, or at least any I can see from the picture.

What I would do, is either drill another hole in the glass for an emergency drain and run a herbie overflow. Easy way to have a silent, basically failsafe overflow. I feel like I'm missing something but that's what I would do. The only problem with this is drilling a full tank really sucks, and you'd have to buy a new overflow weir.

Good luck. Hopefully someone who's a little bit more DIY than I am can help you more. A post in the DIY forum or Equipment forum may help more than this forum, lots of knowledgeable folks in there.

 

[heathlindner25]

Turn the 90 elbow around in your overflow box facing downward

 

[kmcochran0010]

Turn the 90 elbow around in your overflow box facing downward

I tried. It made the same loud noise.


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[aquamann183]

If you face it down and drill a small hole in the top it might not be tooo bad. I wouldn't do that unless you have the ability to replace the 90 in case it's worse. If the 90 is trapped in there, don't do it.

Is it just the one drain?

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[dublo8]

Turn that frown.....errrrm 90 upside down (the one in the overlfow). Replace the 90 (the drain)in the second pic with a street T. put a cap on the top of the street T and drill a hole that's barely big enough for some airline tubing. Shove a piece of airline in there. You could even use one with a silencer on it. If you need a better explanation I can post pics of my setup or just look at your Glass holes overflow 90 to get a better idea. The Street T works better than the 90 provided by GH IMO.

 

[dublo8]

Also, as somebody mentioned above. An emergency drain isn't a bad idea but that would require you to drain the tank, drill another hole and install a second overflow box or a larger one. I would just make sure your display can hold the amount of water from your return section in your sump. Or run your return section low enough to compensate.

 

[JUNBUG361]

Have tried to extend the drain pipe in your sump below water level

 

[kmcochran0010]

Thanks everyone for the input and help. This is what I ended up doing and it helped on sound and flow a ton!

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