OK, my lovely wife saved the article just to irritate me. Seems some chuckle head with the Kansas City Star newspaper wrote an article about winterzing. Seems the "best" advice is to make sure you have your system winterized before the first frost!! Like I didn't already have enough headaches. I'm glad that most of my customers are more intelligent than that and are an excellent mix of those who like to winterize early and those who want to let things run as long as possible. For the last three years here, you could have probably saved the compressor rental until after Christmas, but no way am I going to risk mother nature blowing a blue norther at me on Christmas day and me trying to find a compressor and working on one of the few holidays I've almost always had off (never happen again, but when I had to do snow.........I've missed a Christmas eve or two). Any thoughts? The article refrenced some web sites and one of them is everyone here's favorite I've winterized systems with early snow on the ground and usually tell my customers who do not have exposed backflows that you need a 1" min frost IN the ground before I can't winterize effectively.