****o, I just moved into a new home 14 acres of land, and after settling in, i decided to take a look at the sprinkler system. There are 28 zones including the gardens, and i seem to have a problem with some of the bigger heads. I have noticed when the water is turned on they pop up but do not move. I cleaned the top of one off, and it reads Hunter I-40. There are 3 heads to a zone and i would say they spray a good 75 feet. I have 23 zones of these heads, and about 8 do not move. In the one garden bed there is one of these in the corner, which i guess is suppose to cover the garden, and it does not come up out of the ground. As far as everything else it seems to be ok. Please let me know what i should do! [

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