The best way to think of it is this. The res is only connected to the buckets once. The supply. The drip tube that is in the rez is technically just like having it in the bucket. But instead the bucket is hooked to it remotely. therefor, the tube is the same level and water that is in the farm. Just like the bucket air diplaces the water and moves it up into the ring. But this time air displaces the water moves it up and instead of a ring it overflows into the rez. The supply of the res see the drop in water and releases more out. The tube in the controller bucket and the controller should have the same water level at all times.

WH: If i could ask you check out my thread, your opinion would be apperciated!