A question for those of you who have been blowing out systems for a while... This will be my first year doing it, and right off the bat I see that I need to stock up on a number of different adapters and connectors, not to mention Teflon tape. My big question has to do with people who do not have blow out stubs, no backflow device, and no main irrigation shutoff valve other than the whats on the homes domestic service line. First of all, Im not sure how wise it would be to hook up to a sprinklers funny pipe upstream of a valve, and in these cases where there isnt an irrigation main shutoff valve Id more than likely blowout all the toilet water in the house! Now wouldnt that be a shock to the poor son of a gun sitting on the can! Weather report says it could snow here this weekend. It is September, right?