[Mr.Reefer]

I finished setting up my new 98gal corner tank a few days ago, I hired a guy to drill the holes, he made one 3/4 inch drain pipe and the return line runs smoothly behind the tank. All good, but one problem, the drain pipe is making a LOUD and ANNOYING sound, you can't even watch TV or talk on the phone.

Any body with a good idea to reduce the burping sound?

Thanks!