Hey kids, I'm winterizing sprinkler systems again. Quite a few of my Fridays, Saturdays and Sundays in October are already packed, but I might be able to squeeze in a few members if I'm in your neighborhood. Fee is a flat $50.00. PM me if you are interested.
Basically you shut the water off inside. Hook up a giant air compressor to the copper outside where the water comes out of the house and blow all the water out of the sprinkler heads.