How would you do it... Noisy

[Reggae Fish]

My overflow box is noisy and I looked at the dorso standpipes but due to the fact that it is and external one, I don't have the room, even if I drill on the side of the overflow. So, I've attached a photo of what my overflow looks like and would love suggestions of what I can do. Photo is in gallery

Thanks,
Justin

 

[hahnmeister]

Is that a 55? Try lowering the flow. You dont need more than 200gph going through that overflow. Lowering the flow will lower the noise.

 

[RandyStacyE]

 

[Rich_Lucas]

I did the compact durso like listed above and could fit 2 of them in my external overflow box. Seemed to help better than the stockman.