Dodged a bullet this year

I call horse **** to the droplets of moisture collecting, freezing and busting anything. I would call that not blown out properly. You hook up an air hose, not by using that worthless device that works like tire valve stem...rig up a proper air hose coupler to connect to city water, and flow 30psi through 1 fixture at a time until just air comes out. Then leave everything open.

Of course if you don't or can not do it properly it is best to go through all the glycol pumping etc.