How to Properly Winterize Your RV: A Step-by-Step Guide

As the cold weather approaches, it’s crucial for RV owners to winterize their vehicles to protect them from frost, snow, and freezing temperatures. Winterizing your RV not only prevents damage to your plumbing and appliances but also ensures that it will be ready for use when spring arrives. In this blog, we’ll provide a detailed step-by-step guide on how to properly winterize your RV.

Step 1: Gather Your Supplies

Before you begin the winterization process, gather all necessary supplies:

• RV antifreeze (non-toxic, propylene glycol-based)
• Water heater bypass kit (if applicable)
• Wrench set
• Screwdriver
• Bucket or container
• Hose or funnel
• Clean water for flushing
• Compressed air (optional, for blowing out lines)

Step 2: Clean the RV

A clean RV is easier to winterize and helps prevent mold and mildew:

• Empty the Tanks: Dump the gray and black water tanks at a designated dump station. Rinse them thoroughly with clean water.
• Clean the Water System: Flush the freshwater tank by filling it with clean water and adding a small amount of bleach. Run the water through the taps, let it sit for a few hours, then drain and rinse the tank.
• Remove Perishables: Empty the fridge and pantry of all food items to prevent spoilage and pests.

Step 3: Prepare the Plumbing System

Properly winterizing the plumbing system is essential to prevent freezing and cracking:

• Bypass the Water Heater: If your RV has a water heater, install the bypass kit to prevent antifreeze from entering the heater. Follow the manufacturer’s instructions for your specific model.
• Drain the Water Heater: Turn off the water heater and allow it to cool. Locate the drain plug (usually at the bottom) and carefully remove it to drain the tank completely. Replace the plug when done.
• Drain the Freshwater System: Open all faucets, including the shower and toilet, to drain the freshwater system. Don’t forget to flush the toilet to empty the tank.

Step 4: Blow Out the Water Lines (Optional)

Blowing out the water lines is an optional but effective method to ensure all water is removed:

• Use Compressed Air: If you have access to a compressor, attach the air hose to the city water inlet. Use a low-pressure setting (30-40 psi) and blow air through each faucet and fixture, starting with the lowest points in the RV. Be cautious not to use too much pressure, which can damage the lines.
• Open All Faucets: As you blow out the lines, open all faucets to allow air to push out any remaining water. Don’t forget to flush the toilet.

Step 5: Add Antifreeze

Once the plumbing system is drained, it’s time to add RV antifreeze:

• Pour Antifreeze into the Freshwater System: Using a funnel or hose, pour non-toxic RV antifreeze into the fresh water tank. Follow the manufacturer’s guidelines for the amount needed.
• Run the Antifreeze Through the System: Turn on the water pump and open each faucet (hot and cold) until you see antifreeze flowing through. Don’t forget the shower, toilet, and outside shower (if applicable). Ensure that all water lines are filled with antifreeze to prevent freezing.

Step 6: Winterize Appliances and Accessories

Your RV’s appliances and accessories also need winterization:

• Winterize the Ice Maker: If your RV has an ice maker, disconnect the water line and drain it completely.
• Flush the Toilet: Add a small amount of antifreeze to the toilet bowl to prevent any remaining water from freezing.
• Refrigerator: If your RV fridge has a freezer, consider emptying it and leaving the doors slightly ajar to prevent odors. If you’re storing it long-term, you may want to consider running it on a low setting or completely draining it.

Step 7: Check the Exterior

Before sealing up your RV for winter, inspect the exterior:

• Inspect Seals and Weatherstripping: Check for cracks, gaps, or deterioration in seals and weatherstripping around doors, windows, and vents. Repair or replace any damaged areas to prevent leaks and pests.
• Cover Vents and Openings: Use covers or screens to protect vents and openings from snow, ice, and pests.

Step 8: Store Your RV Properly

Proper storage is crucial for maintaining your RV during the winter months:

• Choose a Safe Location: If possible, store your RV in a garage or covered area to protect it from the elements.
• Use a Cover: If storing outdoors, invest in a high-quality RV cover to protect against snow, ice, and UV damage.
• Maintain Battery Health: Disconnect the battery and store it in a cool, dry place. Consider using a battery maintainer to keep it charged throughout the winter.

Protect Your Investment

Winterizing your RV is a vital process that helps protect your investment from the harsh winter elements. By following these steps—cleaning the RV, preparing the plumbing system, adding antifreeze, and ensuring proper storage—you can extend the life of your RV and ensure it’s ready for adventures when warmer weather returns. Taking the time to winterize your RV not only saves you from costly repairs but also provides peace of mind during the cold months. Happy winterizing!