Please say it's not that time of year again. :(
Fan of blowing lines out here. I used to use a pancake compressor and it worked fine but now I use a 5HP shop compressor with dessicant dryer and 0.01 micron filter - no worries about contaminated air. :) Two winters ago it got cold enough on the west coast that the engine in our skid steer loader froze up solid and did some expensive damage but the lines in the TT were perfectly fine using the pancake compressor.
One thing to know about pink stuff if you're going to use it is that there are two kinds. The cheaper ethanol based one can taint the water, damage seals and evaporate (in toilet bowl). The better propylene glycol stuff doesn't do this and is non-toxic, non-flammable and will help to lubricate seals but is harder to find since it is a little more expensive and won't sell off the shelves like the inferior stuff does. I'm not surprised at all that TL mag. would promote the use of antifreeze. DW refuses to allow a chemical of any kind into the plumbing system.