Durso pipe question

[jasonb87]

On my 72g bow front.
My durso drain is gurgling and whistling but the water level is staying consistent in the overflow box. I have mag 9.5 return pump.

Sumo side is the flex spa pipe into a filter sock. The durso came with the tank and it height adjustable type. It also has what I would say are siphon break holes in the pipe (not sure why).

Any suggestions on getting it to silent up a bit?

 

[jasonb87]

Should also mention I do not have any 90's in the plumbing to the sump. Also do not have any restriction valves in the pump return side or drain to the sump

 

[TomatoSauceTy]

How deep is the drain pipe in to the sump? I find when the drain pipe is deeper in the water it makes less noise. Also if you have a ball valve on the return pump you can restrict it A LITTLE.

 

[jasonb87]

It's almost all the way Into the filter sock. Talked to a friend at my old LFS and he said to try and sponge like a bubble trap sponge cut to the size of the filter sock and put it under the drain to stop the echo in the pipe.

 

[booker1978]

I had the same issue with the doors drain. The water level was fine, but quite a bit of air bubbles would exit the drain, causing A LOT of noise. The thing that helped me the most was to slow down the return pump. I have a DC pump, so it was pretty easy to fine tune. Once I found the correct flow, it became very quiet.

 

[jasonb87]

Thanks booker. I will probably swing by home depot after work tomorrow and pick up a valve and 2 barb fittings I was thinking of trying that same thing after more research. I was originally going to use the mag 7 but decided on the 9.5 Incase I upgrade to a bigger tank later.

 

[jasonb87]

Slowing my mag 9.5 didn't do anything for me. Got a piece of bubble trap foam with a hole half through it and ran my drain through it in the filter sock. Worked wonders!!!