[wilkin250r]

I'd like to measure the resistance and power consumption on the FV1 valve. I'd be willing to bet dollars to donuts the system can power 2 in parallel. If a proper 1-wire, 6-port valve could not be found, this would probably be the most hassle-free alternative. No extra wires, no changing switches, the only additional cost would be an additional $30 for a second valve, and maybe new sections of hose but you were probably planning on doing that anyways.