OK, I'm really brave. I constructed an adapter from air compressor to water hose (set the compressor pressure at 40 pounds) and connect to my water inlet. First drain the fresh water tank, leave the valve open, and open low point valves. When all has drained I close the low point valves and turn on one faucet at a time and turn on my compressor. I go through all of the faucets one at a time until no more water comes out. I then take the plug out of the hot water heater and re-open the low point valves. Last step is to pour the RV anti-freeze in the drains and make sure the toilet has anti-freeze in the bowl to keep the gasket from drying out. We sometimes go south during the winter so don't like to pump the anti-freeze out of the water lines several times. I winterized yesterday. Still warm but we usually get freezing weather in mid September. By not having anti-freeze in my water lines I am ready to fill or connect to the water inlet when we get to warmer climates. We can still flush the toilet with anti-freeze on the road, wash and make coffee with bottled water.
2012 Jay Flight 19RD TT
W/thermal package: R19 walls, R22 roof, R24 floor
2008 F-250 Ford FX4 6.8L V10/4.10 rear axle
Curt class V hitch
Reese trunion WD with dual cam
AC6CV/7 ex-W8RUR since 1954