Originally Posted by peter nolin
I'all take a look, never thought of using air, thanks for the reply
I only use air because I have a pancake style compressor thatr I use for my truck and trailer tires and truck air bags. If I did not have air I would only use the RV antifreeze. Always add via the pump - not the RV tank.
Ensure all of the tanks are empty - pour antifreeze down the drains and then I drain the tanks again. I leave the drain valves open.
I leave the drain cap on the water tank and hot water tank off during the winter too.
Last but not least - don't forget the shower hose - just about forgot last year.