Prior to Father Winter coming to town, you went through the effort of winterizing your RV before placing it in RV storage for the few months of non-use. Now that spring is approaching, it's time to learn what it will take to de-winterize your RV and get it ready for fair-weather fun.

Drain the RV Antifreeze

If you used RV antifreeze to protect the waterlines and holding tanks from freezing over the winter, you will have to clear the antifreeze from the lines and tanks. In most cases, this is how winterization of the water system is completed. The only other method of winterizing the water system is using pressurized air to blow the water out of the system.

Start by draining the antifreeze out of the water system. Do this by connecting a hose to the drainage system, opening all of the faucets and catching the antifreeze in a large bin or garbage can. Don't forget to connect a hose to your water heater and drain the antifreeze out of the tank.

Note – RV winterizing antifreeze is non-toxic – it can be discarded into a septic or sewage system safely.

After you have drained the antifreeze turn off the faucets, connect the hose to the water intake and run water into the system. Turn on the water and open the faucets one by one to begin flushing the lines with fresh water. Let the water run for several minutes.

Note – Don't forget to run fresh water through the shower, toilet and exterior fixtures.

While the system is being flushed, check all of the waterlines to look for leaks that may have sprung during the winter.

Sanitize the System

After the system has been flushed, it needs to be sanitized to kill any bacteria and mold that may contaminate the water. This is done by mixing 1/3 cup bleach with every 5 gallons of water that it takes to fill your holding tank. Let the mixture sit in the tank overnight, then turn on all of the fixtures and the water tank to flush the lines with the sanitizing mixture.

After the tank has run dry, refill it with clean water and rinse the lines. Do this a couple times to ensure that everything has been cleaned from the water system.

This is an easier process than you might think. It does take some time, but winterizing and de-winterizing is an important step in owning and sustaining your RV for many years. 

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