In case others are using this info...
I agree. Only one pump is needed, from a slightly lower tank to slightly higher tank. They can still be side-by-side.
The idea of having 2 pumps to control the water level scares me, and relying on 2 float switches makes it worse.
I agree. Only one pump is needed, from a slightly lower tank to slightly higher tank. They can still be side-by-side.