more flow

[paats]

I`ve been doing a few upgrades on my tank and WOW,what a difference.One thing I did was get more water turn over with some better pumps.Now my hang on overflow makes a heck of a noise every few seconds(like a flushing sound)and seems to dump a bunch of air into the sump when it makes this noise.It`s a duel overflow supposedly rated for up to a 300g tank.It`s on a 125g.I`ve put 2 Via Aqua 4900 for return in the sump.They`re rated at 951gph at 4foot head pressure.I`m probably close to that.The tank is looking great but the noise.....THE NOISE!
Am I pushing too much water through?Anybody else been here?Anything to do?

 

[Ben1]

Have you tried the airline trick?

Put a piece of airline down the overflow pipe a few inches and this will leave area for the air to excape or whatever and silence it.

 

[Anonymous]

Its flushing. I would suggest the Stockman mod to a HOBOF Durso standpipe. You can read about them at www.dursostandpipes.com - click on popular modifications.

 

[paats]

Thanks for the help.That trick with the tubing definitely slowed the flushing way down.I read the link that Righty sent and no doubt thats the problem.I think I got an idea for a good easy fix for this.If it works I`ll let you know.