I switched from Hunter to Rachio in May. Set for 2 days a week. The range gauge never worked well but Rachio monitors the weather for our location and if rain is forecast it won't water. It even adjusts the time per zone. Here's my usage:
May - 18000 gallons - 5 water days
June - 17,000 gallons - 5 water days
July - 5,000 gallons - 1 water day
August - 7,000 gallons - 2 water days
September - 8500 gallons - 2 water days
Before Rachio I had 45,000 gallon months and my lawn didn't even look as good as it does now, which is pretty good. Lot is over 20,000 ft2. I was up north for most of this time so the entire water usage is due to lawn sprinkling. As you can see out of 45 possible water days it only watered 15. The Rachio paid for itself and my monthly internet bill too.
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