not bad really what you should do is keep the reservoir over the buckets so the water goes automaticly back to the buckets
got to go to work
Not necessary mate to have the rez and a higher location. If you look closely, the pump will be pulling the water all around the system..pulling water from the buckets, into the main rez, which is connected to the buckets, so the water will recirculate, as the pump keeps pulling that water