Winterizing and De-winterizing An Rv Or Travel Trailer

Winterizing your RV is crucial to protect it from freezing temperatures and prevent costly damage. This involves draining the water system, protecting pipes, and preparing the RV for cold weather storage. Here’s a step-by-step guide:


1. Drain the Water System

  • Empty the Freshwater Tank: Turn on the water pump and open all faucets to drain the freshwater tank.
  • Drain the Grey and Black Water Tanks:
  • Empty the tanks at an appropriate dump station.
  • Rinse them thoroughly with a tank cleaning wand or built-in flush system.
  • Drain the Water Heater: Turn off the water heater and allow it to cool, then open the drain plug and pressure relief valve to release water.

2. Bypass the Water Heater (if applicable)

  • Install a water heater bypass kit if your RV doesn’t already have one. This prevents antifreeze from entering the water heater and saves antifreeze during the process.

3. Blow Out the Water Lines (Optional)

  • Air Compressor Method:
  • Use an air compressor and a blow-out plug to clear the water lines.
  • Set the air compressor to 30-50 PSI to avoid damaging the lines.
  • Open each faucet, one at a time, starting with the farthest from the compressor, to push out remaining water.

4. Add RV Antifreeze

  • Use Non-Toxic RV Antifreeze:
  • Pour antifreeze into the freshwater system to prevent pipes from freezing.
  • Attach the antifreeze to the water pump using a siphon hose.
  • Pump Antifreeze Through the System:
  • Turn on the pump and open each faucet (hot and cold) until pink antifreeze flows out.
  • Don’t forget the shower, toilet, and outdoor faucets.

5. Protect Drains

  • Pour a small amount of RV antifreeze into each drain (sinks, shower, and toilet) to protect the P-traps and holding tanks.

6. Prepare the Exterior

  • Seal Openings: Check for and seal any gaps or cracks to prevent pests from entering.
  • Cover Tires: Protect tires from UV damage with tire covers.
  • Clean the RV: Wash and wax the exterior to protect it from dirt and moisture during storage.
  • RV Cover: Consider covering the entire RV with a breathable RV cover to protect it from snow and debris.

7. Prepare the Interior

  • Remove Perishables: Take out food and anything that could spoil or attract pests.
  • Clean Thoroughly: Vacuum, wipe down surfaces, and clean out cabinets.
  • Protect Against Pests: Place pest deterrents, such as traps or natural repellents, inside the RV.

8. Maintain Batteries

  • Disconnect or Remove Batteries: If storing for a long time, disconnect or remove batteries and store them in a cool, dry place.
  • Charge Fully: Ensure the batteries are fully charged before storage.

9. Turn Off Propane

  • Close the propane tank valves and turn off the main propane supply.
  • Store propane tanks safely and check for leaks before reusing them.

10. Cover or Insulate Vents and Openings

  • Use vent covers to keep snow and rain out while allowing some airflow to prevent moisture buildup.

Additional Tips:

  • Store in a Safe Location: If possible, park the RV in a covered or indoor storage area.
  • Check Periodically: Visit your RV periodically during the winter to ensure it’s in good condition and free from pests or damage.

Properly winterizing your RV will protect it from freezing temperatures, prolong its lifespan, and save you from expensive repairs when spring arrives. Always refer to your RV’s owner’s manual for specific recommendations.

De-winterizing your RV involves reversing the steps taken to prepare it for winter storage. This process ensures the RV is ready for safe and enjoyable use in the spring and summer months. Here’s a step-by-step guide:


1. Inspect the Exterior

  • Check for Damage: Inspect the roof, seals, and exterior walls for cracks or damage caused by weather or pests.
  • Examine Tires: Look for cracks, flat spots, or low pressure. Inflate tires to the manufacturer’s recommended PSI.
  • Wash and Wax: Clean off dirt and debris that may have accumulated over the winter.

2. Reconnect the Batteries

  • Check Battery Charge: Test the battery with a voltmeter and recharge if necessary.
  • Reconnect: Reattach any cables that were disconnected during winterization.
  • Test Power: Ensure the 12V system and appliances work properly.

3. Flush the Water System

  • Remove Antifreeze: If you used RV-specific antifreeze, flush it out by:
  1. Reconnecting the water pump and opening all faucets.
  2. Running clean water through the system until no antifreeze remains.
  • Sanitize the System:
  1. Mix a solution of 1/4 cup household bleach per gallon of water.
  2. Fill the fresh water tank with the solution.
  3. Run the solution through all faucets, let it sit for 12 hours, then flush with clean water.
  • Check for Leaks: Inspect pipes and connections for any leaks.

4. Test Propane System

  • Reconnect the Propane Tank(s): Reattach the hoses and check for secure fittings.
  • Check for Leaks: Use a propane leak detector or soapy water to ensure no leaks exist.
  • Test Appliances: Light the stove, and check the furnace, water heater, and refrigerator to ensure proper operation.

5. Inspect the Interior

  • Check for Pests: Look for signs of rodent or insect infestation and clean thoroughly.
  • Test Smoke and Carbon Monoxide Detectors: Replace batteries if needed.
  • Clean the Interior: Wipe down surfaces, vacuum, and prepare the living space for use.

6. Check Fluid Levels (Motorized RVs)

  • Engine Oil: Check and change if necessary.
  • Transmission Fluid: Ensure levels are correct.
  • Coolant and Brake Fluid: Top off if needed.
  • Windshield Washer Fluid: Fill with a summer-grade fluid.

7. Inspect and Test Appliances

  • Refrigerator: Turn it on and check for cooling functionality.
  • Air Conditioner: Test to ensure it’s operational.
  • Water Heater: Test the water heater by switching it on once the water system is flushed.

8. Restock Supplies

  • Replenish Essentials: Add items like kitchenware, toiletries, and linens.
  • First Aid Kit: Ensure it is complete and ready for emergencies.

9. Perform a Safety Check

  • Check Lights and Signals: Test headlights, brake lights, and turn signals.
  • Emergency Equipment: Verify that fire extinguishers, spare tires, and toolkits are in good condition.

10. Plan a Short Test Drive

  • Take the RV for a short drive to ensure everything functions as expected. Check the brakes, steering, and suspension.

De-winterizing your RV properly will help ensure a smooth and enjoyable camping season. Always refer to your owner’s manual for specific instructions related to your RV model.