Me neither carey, but as long as the return pump can handle the maximum this unit can drain it will be fine. And having some ball valves to control the flow is insurance.
I updated with pictures of the box that will be receiving water. I attached a small container to where the water will come in.
This way gravity will feed the water through the filter cartridge or sponge or whatever i decide to put in there to remove particles. Obviously it'll have to be cut to size.
The inside container has the bottom cut out so water will flow down into the big container. There is 2 3/4" bushings to make the DIY bulkhead, attached to a 3/4" pvc
pipe and a pvc
elbow to receive water from the overflow box.