Make sure the water heater is turned off.. then it is just part of the water system..
while the air hose is attached make sure you flush the toilet and hold the valve open for all the water to be blown out of that line..
just before the water pump is often a small filter make sure you take the cup off and empty it. don't forget any external showers..
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
140 days boondocking in 2016
211/2015, 196/14, 247/13, 193/12