I am in need of two separate zones to be active at the same time for a slightly different reason. We are "Snowbirds" and leave our house unoccupied for months at a time. We recently had a valve rupture and have no idea how long the water flowed from this breach, but the result was a water bill in excess of $1,000.
Rather than leaving the feed to the entire sprinkler system active continuously, I'd like to have the feed open for a block of time during which the appropriate zones are active. Simply hooking the feed and a single circuit to one zone won't work in this situation.