Winterize Travel Trailer Water System. We do encourage you to check your owner s manual to make sure that you are following the precise step for your particular travel trailer. Holding tank cleaning solution and a cleaning wand for holding tanks or laundry detergent and a bag of ice cubes.
One to engage the air hose outside the vehicle and one to open the faucets inside. You ll start by manually draining all the water tanks as much as possible. Pump what little water that may be left in the lines coming from.
Step 1 allow all water to drain from the fresh water holding tank.
Remove the drain plug on the water heater and let it drain completely. While you have the drain plug out if there is. Remove the drain plug on the water heater and let it drain completely. Take the small screen off the city water connection then using a screwdriver or anything long and pointy push against the valves until the antifreeze comes out of it.