The sprinkler system is in, and what a muddy mess I have! The guys that did the work were working fools with their digging and trenching, I've never seen anything like it, was totally impressed, they did it in one day!! And they cleaned up sidewalks, etc. Today they checked on the coverage, with two minutes for each area. There is a sensor; if it is 42 Deg or below they don't start, if it's raining they don't start, and the sprinklers don't totally overwhelm, it's almost like a spray. We have it turned off for the winter, and if we're not happy, my son is the contractor (in other words, Mom will give you a call!)