Then the granola eaters have another problem of their own creation. By telling people when they can and cannot water, the problem of leaching/runoff is created. If watering is restricted to only a few days out of the week, tendency is for people to try and make up for the lack of water by over irrigating. Putting time windows is also counterproductive because people then try to apply more water than what the soil can absorb. As I previously stated, on sand, my irrigation schedule is based on daily watering, not at night, set to apply 1/7" of an inch of water adjusted according to turf response. If it stays too damp, then days are cut out of the week. Too dry and run time goes up. This cannot be done if the lawn is visited only once every 45-60 days. I am all for the usage of rain sensors. Do not like to see sprinklers in full glory during a thunderstorm. The scenario of someone well meaning shutting everything down because of one drop of rain and forgetting to turn it back on for almost a month is even worse. Especially in my area. Might storm for a day or a week, then there is no more for often months on end.