LF : Lifereef overflow box

[Casey8]

Originally Posted by Reef Pilot

Foolproof overflow. Will not lose siphon due to micro bubbles, and will auto start even after power outage. Airline tubing is connected to return pump input. And totally quiet.

I was using an undrilled tank as a refugium for a while, and made this out of 1 1/4 inch PVC. Worked great.

Did you copy it from somebody or it was your own design ? When I look at the picture, I am not really 100% sure how it works but it looks like a very talented idea.