I have been camping three (3) times this year and just got back from a 1500 mile haul down to Alabama. Since the TM is so easy to drain I always open up all the lines and let her drip dry on the way home.
Got up this morning and it has SNOWED and was all icy. Imagine my concern if I did not have a TM and had left some water in there.
GO Trailmanor!