Herbie drain questions

[fernalfer]

So i have a 120 gallon tank the currently has dual Overflows and running Durso Standpipes. It is louder then i would like. Is their a way to change this into a herbiestyle drain without having to do any plumbing outside of the tank.

I tried looking this up but haven't found much on how it is done with Dual Overflows. If someone could quickly describe what i'dhave for drains and returns and in which overflow would be great.

 

[reef lover]

I think unless u have snough room to drill an additional drain line in the overflow box u would have to run the return over the top and use that hole for the 2nd drain.

 

[dugthefish]

Not really a good way to convert without either drilling another hole or going over the top with the return. I had a dual corner overflow, 3/4" siphon and 1" emergency on each side with returns over the top, worked well.

 

[ReefHog]