Winterizing your RV is crucial to prevent costly damage from freezing water lines. One of the most effective methods is blowing out your camper's water lines with compressed air. This guide provides a comprehensive overview of the process, addressing common concerns and ensuring your RV is ready for the colder months.
Why Blow Out Camper Water Lines?
Freezing water expands, and this expansion can cause pipes to burst, leading to significant repairs. Blowing out your water lines removes all water, preventing freezing and the subsequent damage. This preventative measure saves you time, money, and potential headaches down the road. It's a far more effective method than simply adding antifreeze to the system, especially for complex plumbing systems.
How to Blow Out Camper Water Lines: A Step-by-Step Guide
Before you begin, gather the necessary materials:
- Air compressor: A portable compressor is ideal, but a larger one will work too. Ensure it has enough pressure (at least 90 PSI is recommended).
- Blow gun: A standard blow gun with a relatively narrow nozzle is sufficient. Avoid using a wide nozzle as this can create excessive pressure and potentially damage your pipes.
- Water pressure regulator (optional): A regulator helps to control the air pressure and avoid damaging your system.
- RV antifreeze (optional): Although the primary goal is to remove all water, a small amount of antifreeze can act as added protection in low-lying areas.
- Towels: To soak up any residual water.
Step-by-Step Instructions:
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Turn off the water pump: Ensure your water pump is switched off to prevent any backflow.
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Open all faucets and low-point drains: This allows air to flow freely through the system. Include exterior shower heads and any other low-lying water fixtures.
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Connect the air compressor to the water inlet: Attach the air hose to the city water inlet connection on your RV.
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Slowly increase the air pressure: Start with a lower pressure and gradually increase it as needed. Monitor the flow of water from the faucets to ensure the water is being pushed out effectively.
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Monitor and adjust: If water flow slows or stops, check all faucets to ensure they're fully open and there are no obstructions.
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Continue until no water is expelled: Once no water emerges from the faucets, the lines are effectively blown out.
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Disconnect the air compressor: Carefully disconnect the air compressor and ensure the connection is secure.
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Add antifreeze (optional): Pour a small amount of RV antifreeze into each faucet and low-point drain to provide added protection against residual moisture.
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Double-check your work: Once you're satisfied all the water has been removed, visually inspect all your water lines and connections.
What if I have a low-point drain that won't drain completely?
Sometimes, low-point drains might not drain completely, even with an air compressor. This could be due to a slight blockage, air pocket, or the shape of the plumbing. Gently tapping the affected pipes can sometimes help encourage the water to flow. If this persists, consult an RV technician.
Can I use compressed air to blow out my water heater?
No, you should never use compressed air to blow out your water heater. The high pressure can damage the heating element or tank. Follow the manufacturer's instructions for winterizing your water heater, typically involving draining and adding RV antifreeze.
What about my water pump?
While blowing out your water lines with compressed air is effective, it does not remove water from the water pump itself. You should also winterize the water pump according to the manufacturer's guidelines to prevent damage.
How often should I blow out my camper water lines?
Blowing out your camper water lines is essential before every winter season or any period of prolonged freezing temperatures. The frequency depends on your climate and how often you use your RV during colder months.
What if I don't have access to compressed air?
If compressed air is unavailable, adding RV antifreeze to your water system is the next best alternative, although it isn’t as effective as blowing out the lines. Always follow the antifreeze manufacturer's instructions for proper usage.
By following these steps and addressing potential concerns, you can effectively blow out your camper water lines and protect your RV from the damaging effects of freezing temperatures. Remember to always consult your RV owner's manual for specific instructions relevant to your model. Proper winterization ensures your RV will be ready for adventures all year round.
