Setting up sump...

[MitchM]

Originally Posted by Wayne

...
So return pump size is going to be about 200 Gallons/Hour. Is it better to have drains that are at the top of my overflow or at the bottom? Do I need holes to stop the siphon? Can my return pump too much? Can my drains drain to much? Is mechanical filtration recommended?

What size is your overflow?
How big are those drain pipes?
There should be holes in the top of those drains already, if it was used before...?
You can put a valve on the return side of the pump to regulate flow back to the main tank.
I don't recommend mechanical filtration, but that is a personal choice.
oh, and your drains will only drain back what your pump pushes up to your display tank.

Mitch