Winterizing your fifth wheel trailer is crucial to prevent costly damage from freezing temperatures. Proper winterization involves draining the water system, adding antifreeze, and protecting exposed components to ensure your trailer remains in pristine condition until spring.
Understanding the Importance of Winterization
Leaving your fifth wheel unprepared for winter can lead to catastrophic damage. Water expands when it freezes, potentially cracking pipes, bursting fittings, and damaging appliances. Ignoring winterization can result in thousands of dollars in repairs, not to mention the inconvenience of dealing with a flooded or damaged trailer. This guide, drawing on years of experience in the RV industry, provides a step-by-step approach to effectively winterize your fifth wheel, safeguarding your investment and ensuring hassle-free adventures in the future.
The Essential Winterization Steps: A Detailed Guide
Step 1: Draining the Water System
This is the foundational step. If water remains in the system, it will freeze and expand, leading to damage.
- Drain all holding tanks: Start by emptying your fresh water, grey water, and black water tanks. Use your RV’s dump valves and ensure they are completely closed after draining. Consider using a tank flush system to thoroughly clean the black water tank.
- Drain the water heater: Turn off the water heater (both gas and electric) and allow it to cool completely. Remove the drain plug (typically located near the bottom of the heater) and let all the water drain out. Consider installing a water heater bypass kit to avoid filling the heater with antifreeze later.
- Drain the water lines: Open all faucets (both hot and cold) inside the trailer, including the shower and any outside shower. Turn on the water pump briefly to help push out any remaining water in the lines.
- Bypass the water heater: If you have a bypass valve system, turn the valves to direct water around the water heater. This will prevent you from filling the heater with antifreeze. If you don’t have a bypass, you’ll need to manually install a kit or fill the water heater with antifreeze.
Step 2: Adding RV Antifreeze
RV antifreeze is specifically formulated to be non-toxic and safe for potable water systems. Do not use automotive antifreeze, as it is poisonous and can contaminate your water lines.
- Bypass the water heater (again): Double-check that the water heater is bypassed to prevent filling it with antifreeze.
- Locate the water pump: Identify the location of your water pump. It’s usually in a compartment near the water tank.
- Connect a siphon hose: Many water pumps have a built-in siphon hose connection. If not, you may need to install a T-fitting and a siphon hose.
- Insert the siphon hose into the antifreeze: Place the other end of the siphon hose into a container of RV antifreeze.
- Turn on the water pump: Turn on the water pump and let it run until you see antifreeze flowing from all the faucets (both hot and cold) and shower head.
- Flush the toilet: Flush the toilet until you see antifreeze in the bowl.
- Pour antifreeze into drain traps: Pour a cup of antifreeze into each drain trap (sinks and shower).
Step 3: Protecting Exterior Components
Exposure to the elements can damage your fifth wheel’s exterior.
- Cover tires: UV rays can damage tires, leading to dry rot and premature failure. Use tire covers to protect them from the sun.
- Seal any openings: Check for any cracks or openings around windows, doors, and vents. Seal them with caulk or weather stripping to prevent drafts and pests from entering.
- Cover the air conditioner: If you have a roof-mounted air conditioner, cover it with a protective cover to prevent debris and snow from accumulating inside.
- Lubricate door hinges and locks: Apply a lubricant to all door hinges and locks to prevent them from freezing or corroding.
Step 4: Interior Preparations
Preparing the interior will help prevent moisture buildup and pest infestations.
- Remove perishable items: Remove all food and perishable items from the refrigerator and pantry. This will prevent spoilage and attract pests.
- Clean the refrigerator: Clean the refrigerator thoroughly and leave the door ajar to prevent mildew growth.
- Prop open cabinets and drawers: Propping open cabinets and drawers will allow air to circulate, preventing moisture buildup and mold growth.
- Remove batteries: Remove the batteries from smoke detectors, carbon monoxide detectors, and any other electronic devices. Store them in a cool, dry place.
- Place moisture absorbers: Place moisture absorbers (such as DampRid) inside the trailer to help absorb excess moisture.
- Close the propane tank: Ensure the propane tank valve is securely closed.
Frequently Asked Questions (FAQs)
FAQ 1: Can I use compressed air to blow out the water lines instead of using antifreeze?
While using compressed air to blow out the water lines can remove a significant amount of water, it is not a foolproof method. Trapped water in low spots or behind fixtures can still freeze and cause damage. Antifreeze provides added protection against this.
FAQ 2: How much RV antifreeze do I need?
The amount of antifreeze needed depends on the size and complexity of your fifth wheel’s plumbing system. Typically, 2-3 gallons is sufficient for most fifth wheels. It’s always better to have a little extra on hand.
FAQ 3: What should I do with the ice maker and washing machine?
For ice makers, disconnect the water line and add RV antifreeze to the ice maker tray. For washing machines, run a cycle with RV antifreeze instead of water. Consult the appliance’s manual for specific winterization instructions.
FAQ 4: Do I need to drain the fresh water tank completely?
Yes, it’s essential to drain the fresh water tank completely. Even a small amount of water can freeze and damage the tank.
FAQ 5: How do I winterize the toilet?
After flushing antifreeze through the toilet, add a cup of antifreeze to the bowl to protect the seal. Ensure the valve is properly sealed to prevent odors from escaping.
FAQ 6: Can I leave my propane tanks connected during the winter?
While it’s generally safe to leave propane tanks connected, it’s a good idea to turn off the valve at the tank for added safety. This will prevent any leaks from occurring.
FAQ 7: How do I prevent pests from entering my fifth wheel during the winter?
Seal any cracks or openings around windows, doors, and vents. Remove all food and perishable items. You can also place mothballs or dryer sheets inside the trailer to deter pests.
FAQ 8: Should I cover my fifth wheel during the winter?
Covering your fifth wheel can protect it from snow, ice, and UV damage. However, make sure the cover is breathable to prevent moisture buildup and mold growth. Choose a cover specifically designed for RVs.
FAQ 9: What if I have an onboard water filter?
Remove the water filter cartridge and bypass the filter housing before adding antifreeze. This will prevent the filter from becoming clogged with antifreeze.
FAQ 10: How often should I check on my winterized fifth wheel?
It’s a good idea to check on your fifth wheel periodically throughout the winter, especially after heavy snowfall or extreme temperature fluctuations. Look for any signs of damage or leaks.
FAQ 11: What do I do if I accidentally use automotive antifreeze?
Do not use the water system until it has been thoroughly flushed and sanitized. Automotive antifreeze is toxic and can contaminate your water lines. Contact a professional RV technician for assistance.
FAQ 12: When should I de-winterize my fifth wheel in the spring?
De-winterize your fifth wheel when all risk of freezing temperatures has passed. Thoroughly flush the water system with fresh water to remove all traces of antifreeze before using it. Sanitize the water system following manufacturer’s instructions.
By following these steps and addressing common concerns, you can confidently winterize your fifth wheel trailer and protect it from the damaging effects of freezing temperatures. This proactive approach will ensure your trailer is ready for your next adventure when spring arrives.