Perfecto Overflow noise

[Esabasard]

I finished all the plumbing on my 75g yesterday. Everything seems fine except that the water flowing into the overflow is so loud. It is just falling too far I think but I don't know how to fix it. It is a perfecto tank with their durso pipe. I have read that a larger hole in the top might help but until I get more confirmation of this I am hesitant to modify anything. Thanks in advance.

 

[outta names]

If you think the water falling is the cause of the noise you could build your own dorso and make it taller so that the water doesn't drop as far.

 

[beatle]

I found the durso that Perfecto includes doesn't work well. With a relatively weak return pump, it should be sufficient, but a higher flow one around 600 gph will overwhelm it.

 

[Esabasard]

Maybe thats my problem, I'm using a mag 9.5 for the return pump. It says the overflow is rated at 750gph I think, and I figured after the head pressure the mag 9.5 would be down to about that. beatle, did you find a way to make it work, or just use a smaller pump?