help with quieting down GH overflow...sounds like a train.

The gushing is the result of the air/water mixture not flowing smoothly.

You need to do one or more of the following:

1) restrict your return pump

2) have the drain terminate closer to the water line

3) allow the system to draw in more air (GH overflows have the airline at the top of the elbow, make it bigger)
 
I have a couple of friends that have this overflow and we all do different things to quiet it down.

I bought a larger piece of enkamat on eBay and made sure it went down all the way in the overflow box. I also stuff a piece of enkamat to the top of my filter socks which stops the sounds when the water was falling into the filter socks.

http://i.imgur.com/5EIFyHA.jpg
 
^ thanks yeah i'll try that. i am sure it will help some of the trickling sound.
still thinking about a ball valve on the overflow... I know not ideal but what can you do..
 
do what you want, but restricting your only drain is absolutely begging for catastrophe.

10x turnover is much higher than most people run anyway... What is your big aversion to restricting the return?
 
Tyler,
i really dont have an aversion to restricting the return. maybe i'll give it I try.
the pump I am using is the rio 1700+ @ 4 feet of head its at 352 GPH.
then one 90 elbow. so guessing 300ish GPH

i'll just hate the thought of adding something if I dont not work. but on the other hand if it does I'll be dancing for joy. guess i'll give it a shot and see.
 
OK i got a ball valve and gonna try to add that to the return line. lets see if I can dail it in.
also ordered some enkamat from ebay as well. it time i get this worked out. or else I am going a different way...
 
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