10/02/2026
The first hard freeze is a terrible time to discover that “most of the water” was not all of the water.
RV winterizing is not complicated, but shortcuts can become expensive. One forgotten line, outside shower, water-heater setting or low-point drain can leave you dealing with cracked fittings when the trailer should be ready for spring.
Before calling it finished, check the complete system:
• Fresh-water tank and pump
• Low-point drains
• Water heater and bypass
• Interior and exterior faucets
• Toilet and shower lines
• City-water connection
• Traps, tanks and valves
• Batteries, propane and pest entry points
We put the full process into a practical guide so you can work through it without relying on memory.
The guide is in the first comment.