I'm with "Freelance" on this winterizing stuff. We are on our 3rd TC in 25 years and we live in Stanley Idaho known for being the coldest spot in the Lower 48. I winterize the TC between every single camping trip as Stanley is known for only 25 to maximum 40 Frost free days a year. But winterizing is so easy...Hook up the Air Compressor to the Water Line turn on all valves and drain the Hot water Tank petcock. Air for five minutes and a little RV Anti Freeze in the Drains and Black and Gray tanks October through April....Air just seems so much simpler than all that RV Anti Freeze in all the water lines.
GARY and Laurii