The RV winterizing checklist calculates how much antifreeze you need and provides a step-by-step winterizing guide tailored to your RV type. Skipping winterization risks thousands in freeze damage to pipes and tanks.
Your RV
How to Use the RV Winterizing Checklist
The RV winterizing checklist generates a customized step-by-step guide for your specific RV type and preferred winterizing method. Following all steps protects your water system from freeze damage.
Step 1: Choose antifreeze or compressed air
Antifreeze is more foolproof — it fills all lines and traps, ensuring nothing freezes. Compressed air is faster but requires proper technique to avoid missing water in low points. Both methods work; many RVers do compressed air first, then pour antifreeze into p-traps and drains for insurance.
Step 2: Work through the checklist systematically
Start at the water inlet and work forward — bypass the water heater, then pump antifreeze through each faucet, starting farthest from the pump and working back. Run each faucet until you see pink antifreeze, then move to the next. Don't forget the toilet, outdoor shower, and low-point drains.
Step 3: Don't skip the de-winterizing checklist
In spring, flush all antifreeze before drinking water. Run fresh water through every fixture until it runs clear and tasteless. Sanitize the fresh water tank with a bleach solution (1/4 cup bleach per 15 gallons) before the first use of the season.
Frequently Asked Questions
Is this RV winterizing tool free?
Yes, completely free. All calculations run locally with no data transmitted.
How much antifreeze do I need to winterize my RV?
A typical travel trailer needs 2–4 gallons of RV-specific antifreeze (pink, non-toxic). A Class A motorhome may need 3–5 gallons. The amount depends on how many faucets, toilets, water lines, and holding tanks your rig has. Always use RV/Marine antifreeze rated to -50°F (-46°C), not automotive antifreeze.
Can I use compressed air instead of antifreeze?
Yes. Blowing out water lines with compressed air (PSI varies by RV — usually 30–50 PSI) removes water without using antifreeze. The advantage is no antifreeze taste in spring. The risk is missing water in p-traps or low points. Many RVers use compressed air first, then pour a small amount of antifreeze into drains and traps for insurance.
What happens if I don't winterize my RV?
Water left in lines freezes and expands, cracking PVC pipes, water heater tanks, holding tanks, and pump housing. Repair costs for freeze damage typically run $500–3,000+. Water heater tank replacement alone is $200–500 plus labor. Winterizing takes 2–4 hours and prevents all of this.
When should I winterize my RV?
Winterize when nighttime temperatures will consistently drop below 32°F (0°C) in your storage area. If you store outdoors in the north, September–October is typical. If you store in a heated building, winterizing may not be needed, but draining tanks is still recommended for hygiene.
Can I use my RV in winter without winterizing?
Yes, if you keep the interior heated to above freezing and run water regularly. Many full-timers and snowbirds use their RV all winter by keeping the furnace running, insulating underbelly openings, and using heat tape on exposed water connections. If the RV will be unoccupied in freezing temps, winterize it.