I have 9 zones, and I use a 2 hp pump from a river. I can run 2 zones at the same time so I setup 5 zones. I would rather setup 9 zones separately, then have the option of running 1 zone, or 2 zones at the same time since I have the water pressure available. Then, if I need to run some of the zones by themselves, I can run them solely 1 at a time without having to re-vamp the wiring on the unit. There are times, like now, I planted grass seed and I need just a few separate zones to water, not the double zones I have setup for my programs. I can't do that unless I separate them out into separate zones and then I don't get the efficiencies of running the dual zones together. I do believe there are others out there that would appreciate this fix, or upgrade in the software.
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