Trying to figure out how to plumb my 240 gallon overflow it has a center overflow with 4 holes - 1" x 1 1/2" x 1 1/2" x 1". My initial thought is do a herbie style with one 1 1/2" full siphon and the other 1 1/2" as emergency. I would use one 1" for return and cap the other.
Let me know what you think
Let me know what you think