I have a rather dumb question for you guys, is their by chance a tutorial on blowing out a sprinkler system. Im not looking to get into the irrigation business, would like to just blow out my own. I have a small 5 zone system, with 4-6 heads on a line. I have a small compressor, 30 gallon unit, just wondering if i would be able to fill the compressor tank up and blow out each zone good enough for winter. Any help would be great, is their special fittings i will need?