Winterizing your RV is crucial to prevent costly damage from freezing water. A key part of this process is completely removing water from your RV's plumbing system. This guide will walk you through the effective and safe methods for blowing water out of your RV lines. We'll cover everything from preparing your RV to troubleshooting common issues.
Why is Blowing Water Out of RV Lines Important?
Freezing water expands, and this expansion can cause significant damage to your RV's plumbing system. Pipes can burst, fittings can crack, and even your water heater can be compromised. By completely removing the water from your lines, you significantly reduce the risk of costly repairs. Blowing out the lines with compressed air is a highly effective method.
How to Blow Water Out of RV Lines: A Step-by-Step Guide
Before you begin, gather the necessary tools:
- Air compressor: A standard 12-volt compressor may suffice for smaller RVs, but a more powerful compressor is recommended for larger units.
- Blow gun: This will be attached to your air compressor. Choose one with a variety of nozzles for versatility.
- Low-pressure regulator: This is crucial for preventing damage to your RV's plumbing system. Never exceed 30 PSI.
- Water pressure relief valve: Locate this on your water heater to release pressure before starting.
- Plumbing sealant tape (optional): This can be used to ensure watertight connections.
Steps:
- Prepare your RV: Turn off the water pump and disconnect from any external water sources. Drain your water heater according to the manufacturer's instructions.
- Open all faucets and drain valves: This includes the faucets, low-point drains, and any other valves connected to your water system.
- Attach the air compressor: Connect the air compressor's hose to the city water inlet using the blow gun. Ensure a tight seal.
- Turn on the air compressor: Slowly increase the air pressure, ensuring you never exceed 30 PSI. Monitor the process closely.
- Listen for changes in air flow: As the water is pushed out, the air flow should change. You may hear a gurgling sound.
- Close faucets and valves: Once air is freely flowing from all faucets and drains, close them slowly to avoid potential damage.
- Add RV antifreeze (recommended): While blowing out the lines removes most water, it's recommended to add RV antifreeze (propylene glycol-based) to ensure complete protection. Pour it into low-point drains and faucets.
- Disconnect the air compressor: Once the process is complete, carefully disconnect the air compressor and store all equipment properly.
What if I don't have an air compressor?
If you don't have access to an air compressor, you can use a hand pump specifically designed for this purpose, though this process may be more time-consuming.
How to Blow Water Out of RV Water Heater?
This usually involves opening the drain valve on the water heater and using the air compressor method as described above. Consult your water heater's manual for specific instructions. Never exceed the recommended pressure for your water heater.
What if I can’t blow all the water out?
Sometimes, small amounts of water may remain trapped in low-lying sections of the plumbing. This is usually not a major concern if you've used RV antifreeze. However, you may need to consider professional assistance if you encounter persistent issues.
Can I use compressed air to blow water out of my RV's toilet?
No, do not use compressed air to blow water out of your RV's toilet. The pressure could damage the toilet's internal mechanisms. Instead, follow the manufacturer's instructions for winterizing your toilet.
How often should I blow out my RV lines?
You should blow out your RV lines before every winter storage period and anytime you're storing your RV for an extended period in freezing temperatures.
By following these steps, you can effectively blow water out of your RV lines, protecting your investment and ensuring you're ready for your next adventure. Remember to always prioritize safety and consult your RV's owner's manual for specific instructions.
