Sump return help

[prskiller]

I would tee the drains and have two e-drains and run one pump to single spray bar. <<<<<< Herbie overflow. Shouldn't say I would because I did

 

[aldiaz33]

Thank you for your help. How do you determine the overflow capacity?

Check out this handy calculator: http://www.reefcentral.com/index.php/drainoverflow-size-calc

1" drain will typically handle ~600GPH
1.5" drain will typically handle ~1,300GPH
2" drain will typically handle ~2,400GPH

For example, if your (2) drains are 1.5", you can run a maximum of 2,600GPH. You wouldn't want to get a pump that does more than 2,600GPH at the head height you will be running.