Zone 4 of the newly installed sprinkler system. It works perfectly! Dave and I have spent the last three weekends digging trenches, making Home Depot and Hardware Hawaii runs, cutting PVC, hooking up sprinkler heads and finally filling in trenches with (not enough) sandy soil. A muscle aching, strenuous, sweaty and dirty job, but very rewarding in the end. What's that I hear off in the distance? A huge electrical thunder storm... perfect timing!