Smitty
Aquarium Advice Addict
The only thing I would be concerned about is if the power is cut how much extra water will go into the sump while the water isn't being pushed back up. Looks like the PVC is at the top of the containers and there isn't a lot of room for overflow.
You may want to do a test before putting it into action. That way if it does overflow you have the ability to fix it before putting it into action.
You may want to do a test before putting it into action. That way if it does overflow you have the ability to fix it before putting it into action.