Winterizing a fifth wheel travel trailer is absolutely essential to prevent costly damage from freezing temperatures. Properly preparing your RV for winter storage protects plumbing, appliances, and other systems from bursting, cracking, and deteriorating due to ice formation.
Why Winterizing Matters: The High Cost of Neglect
Few things are more disheartening than discovering your beloved fifth wheel has suffered severe damage after a long winter. Neglecting to winterize can lead to burst pipes, cracked toilets, damaged water pumps, and even structural damage to the RV itself. The repair bills for these problems can easily run into the thousands of dollars, not to mention the inconvenience and loss of valuable travel time. The good news is that winterizing, while requiring some effort, is a straightforward process that can save you significant money and headaches in the long run. It’s an investment in the longevity and functionality of your RV. Think of it as an insurance policy against the harsh realities of winter’s freeze.
Step-by-Step Winterizing Procedure
Winterizing a fifth wheel involves a series of steps designed to remove all water from the plumbing system and protect vulnerable components. Here’s a detailed breakdown of the process:
1. Draining the Water System
The first and most critical step is to completely drain all water from the fresh water tank, water lines, water heater, and holding tanks.
- Drain Fresh Water Tank: Locate the drain valve for your fresh water tank and open it to allow the tank to empty completely.
- Drain Water Heater: Turn off the water heater (both gas and electric if equipped) and allow it to cool completely. Then, remove the drain plug (usually a plastic or metal plug near the bottom of the water heater) and drain the tank. Remember to release the pressure by opening the pressure relief valve on top of the water heater.
- Drain Holding Tanks: Empty the gray and black water holding tanks at an appropriate dumping station. Rinse the tanks thoroughly with a tank rinsing system or a garden hose attachment designed for this purpose.
- Drain Water Lines: Open all faucets, both hot and cold, including the shower and outdoor shower (if applicable). Flush the toilet. You can use the RV’s water pump to help force any remaining water out of the lines.
2. Bypass the Water Heater
Bypassing the water heater is crucial when using RV antifreeze. This prevents filling the entire water heater tank with antifreeze, saving you a significant amount of product. Most RVs have a water heater bypass valve or a bypass kit installed. If your RV doesn’t have one, you can purchase and install a bypass kit. Refer to your owner’s manual for specific instructions on how to bypass your water heater. Typically, it involves turning one or more valves to redirect water flow around the water heater tank.
3. Adding RV Antifreeze
RV antifreeze is non-toxic and designed specifically for use in potable water systems. Never use automotive antifreeze, as it is highly toxic and dangerous to consume.
- Pump Method: The most common method involves using the RV’s water pump to circulate antifreeze through the plumbing system. Disconnect the fresh water inlet line from the fresh water tank. Attach a siphon hose to the inlet line and place the other end of the hose into a jug of RV antifreeze. Turn on the water pump and open each faucet, one at a time, until you see a steady stream of pink antifreeze flowing out. Repeat this process for the shower, toilet, and any other water outlets.
- Air Compressor Method: An alternative method involves using an air compressor to blow out the water lines. Connect an air compressor to the city water inlet and set the pressure to around 30-40 PSI. Open each faucet, one at a time, and allow the compressed air to force any remaining water out of the lines. Be careful not to over-pressurize the system, as this can damage the pipes. After blowing out the lines, pour RV antifreeze into the P-traps of sinks and the toilet to prevent freezing.
4. Protecting Appliances and Fixtures
Several appliances and fixtures require specific attention during winterization:
- Toilets: Pour RV antifreeze into the toilet bowl and flush it to coat the seals and prevent them from drying out and cracking.
- Drains: Pour RV antifreeze into all sink and shower drains to protect the P-traps from freezing.
- Washing Machine (if equipped): Consult your washing machine’s owner’s manual for specific winterizing instructions. This usually involves running a cycle with RV antifreeze.
- Ice Maker and Water Dispenser (if equipped): Disconnect the water line to the ice maker and water dispenser. Consult your owner’s manual for specific winterizing instructions. This may involve blowing out the water line with compressed air and adding RV antifreeze.
5. Final Steps
- Disconnect the Battery: Disconnect the battery and store it in a warm, dry place. This will prevent it from freezing and discharging.
- Cover Tires: Protect your tires from UV damage and cracking by covering them with tire covers.
- Seal Openings: Seal any potential entry points for pests, such as gaps around pipes and vents.
- Ventilation: Leave cabinet doors and drawers slightly open to allow for air circulation and prevent condensation buildup.
- Inspect Roof: Thoroughly inspect the roof for any cracks or damage and repair them before winter.
- Check Seals: Inspect all seals around windows and doors and repair any that are damaged or worn.
FAQs: Addressing Your Winterizing Concerns
FAQ 1: How much RV antifreeze do I need to winterize a fifth wheel?
The amount of RV antifreeze needed depends on the size of your fifth wheel and the complexity of its plumbing system. A general estimate is 2 to 3 gallons for a smaller fifth wheel and 3 to 5 gallons for a larger model. It’s always better to have a little extra on hand.
FAQ 2: Can I use an air compressor to winterize without using RV antifreeze?
While using an air compressor alone can remove a significant amount of water, it’s not recommended as the sole method. Pockets of water can still remain in low points and crevices, leading to freezing and damage. Using RV antifreeze ensures complete protection.
FAQ 3: Is it safe to leave the water heater drain plug out all winter?
While it’s a common practice to leave the drain plug out, it can also expose the tank to potential debris and insect infestations. A better option is to replace the drain plug after draining and drying the tank, but leaving the pressure relief valve slightly open. This allows for ventilation while preventing unwanted entry.
FAQ 4: What happens if I forget to bypass the water heater when adding antifreeze?
You will end up filling your entire water heater tank with RV antifreeze, which is unnecessary and wasteful. While it won’t cause damage, it will require a significant amount of antifreeze, costing you money. If this happens, be sure to thoroughly flush the water heater in the spring before using it.
FAQ 5: How do I winterize the black tank flush system?
The black tank flush system is often overlooked but needs protection. After thoroughly rinsing the black tank, disconnect the hose from the city water inlet and use an air compressor to blow out any remaining water from the flush line. You can also pour a small amount of RV antifreeze into the inlet.
FAQ 6: Can I use regular household antifreeze in my RV?
Absolutely not. Automotive antifreeze is highly toxic and should never be used in a potable water system. Only use RV antifreeze, which is specifically formulated for this purpose.
FAQ 7: What if my fifth wheel has a residential refrigerator with an ice maker and water dispenser?
Residential refrigerators require a more specialized winterization process. Refer to the refrigerator’s owner’s manual for specific instructions. This usually involves disconnecting the water line, draining the water filter, and blowing out the water lines with compressed air. Consider consulting with an RV technician for assistance.
FAQ 8: How do I know if my fifth wheel is properly winterized?
The best way to ensure your fifth wheel is properly winterized is to carefully follow all the steps outlined in this guide and consult your owner’s manual. After completing the process, double-check all drains and fixtures for any signs of water.
FAQ 9: Is it necessary to cover my fifth wheel during the winter?
Covering your fifth wheel can provide additional protection from the elements, such as snow, ice, and UV rays. However, it’s important to choose a breathable cover specifically designed for RVs to prevent moisture buildup and mold growth.
FAQ 10: Can I winterize my fifth wheel myself, or should I hire a professional?
Winterizing a fifth wheel is a manageable DIY project for most RV owners. However, if you are uncomfortable with any of the steps or have a complex system, hiring a professional RV technician is a wise investment.
FAQ 11: What happens if I find a leak after winterizing?
If you find a leak after winterizing, it’s crucial to address it immediately. The leak could indicate a cracked pipe or fitting. Contact an RV technician to diagnose and repair the problem before it causes further damage.
FAQ 12: When should I de-winterize my fifth wheel in the spring?
De-winterize your fifth wheel when the risk of freezing temperatures has passed. Thoroughly flush the entire water system with fresh water to remove any remaining RV antifreeze. Sanitize the fresh water tank and lines before using the RV for drinking water.