Some pics to help explain the idea:
The blue pipe will be for flooding, and the red a catch tank for draining. The yellow pipe will carry drainage back to the res via a sump pump in the drainage catch. In the event that this pump isn't functioning, a secondary overflow pipe will be installed...
I have an unused area in my grow space that I'd like to stuff a flood table into. This room has rather low ceilings, so instead of putting my reservoir under the table, I was toying with the idea of keeping the table about a foot off the ground, and pumping the water back out, and up, to my...