Winterizing your RV travel trailer is essential to prevent costly damage from freezing temperatures. Properly preparing your RV for the off-season involves removing all water from the plumbing system, adding antifreeze, and taking steps to protect the exterior.
The Importance of Winterizing
Leaving water in your RV’s pipes and appliances during freezing weather can lead to devastating consequences. Water expands when it freezes, potentially bursting pipes, cracking water pumps, damaging faucets, and even splitting the RV’s holding tanks. The cost of repairing this damage can be significant, easily reaching thousands of dollars. Winterizing is an investment in protecting your RV and ensuring it’s ready for adventure when spring arrives. Neglecting this crucial task is simply not worth the risk.
Step-by-Step Winterization Process
This section outlines the detailed steps necessary to winterize your RV travel trailer effectively. Follow these instructions carefully to ensure complete protection against freezing temperatures.
1. Draining the Water System
The first and most crucial step is to completely drain the entire water system. This includes the fresh water tank, water heater, and all water lines.
- Fresh Water Tank: Locate the drain valve on your fresh water tank and open it to allow all water to empty. Ensure the tank is completely empty.
- Water Heater: Turn off the water heater and allow the water to cool completely. Then, open the drain plug (typically a plastic plug at the bottom of the tank) to drain the water. Note that some water heaters may require a special tool to remove the plug. Once drained, replace the plug but leave it loose to allow for ventilation. Important: Bypass the water heater using the bypass valve before introducing antifreeze. This prevents antifreeze from filling the water heater, which is wasteful and unnecessary.
- Water Lines: Open all faucets (both hot and cold) and the showerhead to allow air to enter the system and help drain the water lines. Flush the toilet multiple times. Don’t forget the outside shower if your RV has one.
2. Bypassing the Water Heater
As mentioned previously, bypassing the water heater is critical to conserve antifreeze. Most RVs have a bypass valve specifically designed for this purpose. It typically involves switching a lever or turning a valve to redirect the water flow, preventing it from entering the water heater tank. If your RV doesn’t have a built-in bypass valve, you can purchase and install one.
3. Adding RV Antifreeze
RV antifreeze, also known as potable antifreeze, is specifically designed for use in RV plumbing systems. Do not use automotive antifreeze, as it is toxic.
- Using a Water Pump Converter Kit: The easiest way to introduce antifreeze is using a water pump converter kit. This kit typically includes a siphon hose that connects to the inlet side of your water pump. Insert the other end of the hose into a gallon of RV antifreeze.
- Turn on the Water Pump: Turn on the water pump, and it will draw the antifreeze through the system.
- Open Faucets: Starting with the faucet furthest from the water pump, open both the hot and cold sides until you see pink antifreeze flowing steadily. Repeat this process for all faucets, including the showerhead and outside shower.
- Flush the Toilet: Flush the toilet until you see pink antifreeze appear in the bowl.
- Pour Antifreeze Down Drains: Pour a cup or two of antifreeze down each sink and shower drain, as well as the toilet. This will protect the P-traps from freezing.
4. Protecting Holding Tanks
While draining your holding tanks is crucial, a small amount of residual water may remain.
- Black and Gray Tanks: Thoroughly flush both the black and gray water tanks. Some RVs have a built-in tank flushing system. Add a few gallons of RV antifreeze to each tank to prevent any remaining water from freezing.
- Drain Valves: Pour a small amount of antifreeze into the drain valves to protect them.
5. Protecting Appliances
Various appliances in your RV need specific attention during winterization.
- Ice Maker and Washing Machine: If your RV has an ice maker or washing machine, follow the manufacturer’s instructions for winterizing these appliances. This typically involves disconnecting the water lines and adding antifreeze.
- Low Point Drains: Open the low point drain valves (usually located under the RV) to ensure any remaining water in the lines is drained.
6. Exterior Protection
Protecting the exterior of your RV is also crucial for winter storage.
- Cover the RV: Consider purchasing an RV cover to protect it from the elements, such as snow, ice, and UV rays.
- Inspect Seals: Inspect all seals around windows, doors, and vents. If you find any cracks or gaps, seal them with caulk or sealant.
- Tire Protection: Cover the tires to protect them from sun damage and prevent dry rot. You can also place boards under the tires to keep them off the ground.
- Battery Maintenance: Disconnect the RV battery and store it in a cool, dry place. Periodically check the battery’s charge and recharge it as needed.
Winterization Checklist
A comprehensive checklist ensures no step is missed.
- [ ] Drain fresh water tank
- [ ] Drain and bypass water heater
- [ ] Open all faucets and showerhead
- [ ] Add RV antifreeze to water lines
- [ ] Pour antifreeze down drains
- [ ] Flush black and gray tanks and add antifreeze
- [ ] Protect ice maker and washing machine (if applicable)
- [ ] Open low point drains
- [ ] Cover the RV
- [ ] Inspect and seal exterior seals
- [ ] Protect tires
- [ ] Disconnect and store battery
Frequently Asked Questions (FAQs)
Here are some frequently asked questions about winterizing an RV travel trailer:
1. How do I know if my RV is properly winterized?
The primary indicator of proper winterization is the presence of pink RV antifreeze at all faucets and fixtures throughout the RV. This confirms that the water lines are protected. Visually inspect for any signs of water leaks or damage during and after the winterizing process.
2. Can I skip winterizing if I live in a mild climate?
Even in mild climates, freezing temperatures can occur unexpectedly. It’s always recommended to winterize your RV, even if you live in an area that rarely experiences freezing temperatures. The cost of prevention is far less than the cost of repair.
3. How much RV antifreeze do I need?
The amount of RV antifreeze needed depends on the size of your RV and the length of the plumbing system. As a general rule, 2-3 gallons are usually sufficient for a travel trailer. However, it’s always best to have an extra gallon on hand just in case.
4. What if I forget to bypass the water heater?
If you accidentally introduce antifreeze into the water heater, drain the tank thoroughly and flush it with fresh water in the spring. It’s wasteful and might impart a slight taste, but it shouldn’t cause any long-term damage.
5. Can I use air to blow out the water lines instead of antifreeze?
Using compressed air to blow out the water lines can be an alternative to antifreeze, but it’s not as foolproof. It’s difficult to remove all the water, and any remaining water can still freeze and cause damage. If you choose this method, be extremely thorough and use an air compressor with a regulator set to a low pressure (around 30-40 PSI) to avoid damaging the pipes. Antifreeze is the safest and most reliable option.
6. How do I de-winterize my RV in the spring?
To de-winterize your RV, flush the entire water system with fresh water to remove the antifreeze. Sanitize the fresh water tank and water lines using a solution of bleach and water.
7. What should I do with the water filter?
Remove the water filter cartridge before winterizing and store it in a cool, dry place. Replace it with a new cartridge in the spring. If you forget, the filter element can deteriorate, leading to decreased water pressure and potential contamination.
8. How do I protect the toilet valve?
After flushing the toilet with antifreeze, pour a small amount of antifreeze into the toilet bowl to protect the valve and seal.
9. Do I need to remove the batteries from my smoke detectors and carbon monoxide detectors?
Yes, it’s a good idea to remove the batteries from your smoke detectors and carbon monoxide detectors during storage to prevent them from draining.
10. Should I leave the RV vents open or closed during the winter?
Leaving the vents slightly open can help prevent moisture buildup inside the RV. However, make sure the vents are properly screened to prevent insects and rodents from entering.
11. What about the propane tanks?
Turn off the propane tanks and cover them to protect them from the elements. It’s also a good idea to inspect the propane lines for any leaks.
12. Where can I find the low point drains on my RV?
Low point drains are typically located under the RV, near the water lines. Consult your RV owner’s manual for the exact location. They are usually marked with red and blue handles or caps.
By following these steps and answering these questions, you can effectively winterize your RV travel trailer and protect it from the damaging effects of freezing temperatures. This preventative maintenance will save you money and ensure your RV is ready for your next adventure.