Have used All Wet for 25 years. This is the first time the tech refused/couldn't winterize through the compressor connector, and said he could only do it through the hose connection. We usually leave the faucet on for a few more weeks, but were forced to turn off all the water. And, having watched this process over 20 times, this was the first time that a tech felt it was okay to switch zones when there was still water coming out of the sprinkler heads. I think he just wanted to go home, as we were the 5:00 call