Winterizing your RV is crucial to prevent costly damage from freezing water lines. One of the most effective methods is blowing out your RV water lines using compressed air. This guide will walk you through the process, answering common questions and ensuring you protect your RV plumbing system throughout the colder months.
Why Blow Out RV Water Lines?
Freezing water expands, causing pipes to burst. This can lead to significant damage, requiring expensive repairs. Blowing out your RV water lines removes all water from the system, eliminating the risk of freezing and subsequent damage. This preventative measure saves you time, money, and potential headaches.
What You'll Need to Blow Out Your RV Water Lines
Before you begin, gather these essential items:
- Air compressor: A portable air compressor with a minimum of 100 PSI is recommended. Higher PSI is better, allowing for faster and more efficient blowing. Always check your compressor's maximum pressure to avoid damaging your system.
- Blow gun: A blow gun with a variety of attachments will allow for better access to different fittings. Choose one with a regulator for precise pressure control.
- Water pressure regulator: This device is crucial for controlling the air pressure entering your RV's water system, preventing damage.
- RV antifreeze: While blowing out the lines removes most water, using antifreeze in low-lying areas provides extra protection.
- Towels: Have towels ready to clean up any accidental spills.
- Safety glasses: Always protect your eyes when working with compressed air.
- Gloves: Protect your hands.
How to Blow Out Your RV Water Lines: A Step-by-Step Guide
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Turn off your water pump: Ensure your water pump is completely turned off before you begin.
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Drain your water heater: If your RV has a water heater, drain it completely according to the manufacturer's instructions.
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Open all faucets and low points: Open all faucets, showerheads, and any low-point drains throughout your RV. This allows air to flow freely through the system, removing the water efficiently.
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Connect the blow gun: Attach the blow gun to your water pump's water inlet. Use caution to ensure a proper and secure connection.
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Connect the air compressor to the blow gun: Attach the air compressor to the blow gun, ensuring it's securely connected.
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Slowly introduce air: Slowly increase the air pressure, starting low and gradually increasing to around 30-40 PSI. Never exceed the recommended pressure for your RV's water system. Monitor the air pressure gauge closely.
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Observe the water flow: Watch as the water flows out of the faucets and low points. Once the water flow stops and only air is expelled, the lines are considered clear.
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Add RV antifreeze: Pour RV antifreeze into low-lying areas like sinks and shower drains to protect against residual water.
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Disconnect the air compressor and blow gun: Carefully disconnect the air compressor and blow gun.
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Close all faucets and low points: Close all faucets and low-point drains after the process is complete.
What PSI Should I Use to Blow Out My RV Water Lines?
The recommended PSI varies depending on your RV's water system and the type of piping. Start low (around 30 PSI) and gradually increase, monitoring for any leaks or issues. Never exceed the manufacturer's recommended PSI for your system. Consulting your RV's manual is highly recommended.
How Do I Know if My RV Water Lines Are Completely Blown Out?
You'll know your lines are completely blown out when only air comes out of all faucets and low points. If any water continues to drip, you may need to repeat the process or check for blockages.
What Happens If I Don't Blow Out My RV Water Lines?
Failing to blow out your RV water lines can result in frozen and burst pipes. This can lead to significant damage to your RV, including water damage to interior components, and costly repairs.
Can I Use a Shop Air Compressor to Blow Out My RV Water Lines?
Yes, a shop air compressor is often used for this purpose; however, you must carefully regulate the air pressure to avoid damaging your RV's water system. Remember to use a water pressure regulator to ensure the pressure doesn't exceed the safe limits.
By following these steps and precautions, you can confidently blow out your RV water lines, ensuring your RV is protected from winter's harsh conditions. Remember to consult your RV's owner's manual for specific instructions and recommendations. Proper winterization is key to preserving your RV and ensuring it's ready for your next adventure.
