Beginner in need of some advice

[ReefOcean]

Originally Posted by Sunee

I have a 60 gallon and have a Herbie style drain system, 1" primary drain with a gate valve, the second 1" is the emergency drain. There is a 3/4" return returning about 250 to 300 gph (you could go higher with the 1" drain) - return pump is the Tunze silence 1073.20. The system is dead silent an I've had it running for about 10 months with no problem. It is an option for you.

Or this^^^.

The 3rd overflow is merely a fail-safe. You get the same silent operation from the one Sunee describes.