Dual overflow all 1-3/4 inch holes

[reefman323]

Hey guys new to the forum, I have a 100 gallon FOWLR and a rsm130d coral tank all doing great. Just bought a 225g dual overflow tank to replace the 100g. Each overflow have two 1-3/4 holes so that’ll fit 1” bulkheads. I’m going to use a trigger ruby 36 sump. I’m trying to figure out how to plumb this. Do I do a drain and emergency drain in each overflow.

 

[tzabor10]

Could you please include a diagram of what you think should happen. And maybe pictures of your overflows. Looks awesome

 

[JGT]

Yes, if you are doing a herbie drain, 1 of each in each overflow. That’s what I do.

 

[reefman323]

Here is the 2 holes. Both sides are the same

 

[reefman323]

Yes, if you are doing a herbie drain, 1 of each in each overflow. That’s what I do.

And than you would run the returns outside the back wall?

 

[JGT]

Mine are drilled so come back out each overflow.