[GpsFrontier]

Ya, I can see how that wouldn't work if you were trying to divide the water flow to both tubs evenly. I have a couple suggestions, but first I want to ask a few questions:

1. What is the lower solid line between the too tubs and reservoir supposed to be? Is that supposed to be a return line?
2. Also are these tubs supposed to have water in them all the time?
3. Is the water level in the reservoir supposed to be the same level as in the tubs? Or is the reservoir actually lower than the two tubs?
4. What kind of system is this supposed to be (a recirculating water culture system, flood and drain system, NFT system etc.)?
5. Do you have an overflow tube to keep the water from overflowing the two tubs?