How to de-winterize Keystone RV?

If you have recently purchased a Keystone RV and want to get it ready for the summer season, it is important that you take the time to de-winterize it properly. This process involves removing antifreeze from the water system, replacing any fluids or filters that need changing, and testing all of the systems before hitting the road. By following these steps correctly, you can ensure that your RV will be safe and operational when you head out for summer adventures.

Open all the valves – black, grey, and fresh water

When you are de-winterizing a Keystone RV, the first step is to open all of the valves. This includes opening the black water valve, grey water valve, and fresh water valve. This will allow the antifreeze to drain out of each tank and ensure that there isn’t any pressure on the lines when you start filling up the tanks with fresh water.

Flush out all of your tanks

The next step is to flush out all of your tanks. You can do this by connecting a hose to one end of your RV’s main freshwater tank and then running it until all of the antifreeze has been flushed from each individual tank. This process should take about 10 minutes and should be done with each tank, including the black and grey water tanks.

Check all of your fluid levels

Once you have flushed out your tanks, it is important to check all of your fluid levels. This includes checking and topping off your RV’s engine oil, brake fluid, power steering fluid, antifreeze, and transmission fluid. If any of these fluids need to be replaced or changed entirely, it is best to do so before heading out on the road.

Replace any filters that need replacing

When de-winterizing a Keystone RV, it is also important to replace any filters that need changing. This may include air filters for the engine, fuel filter for the fuel tank, and water filters for the fresh water tank. By replacing these filters, you can ensure that your RV is running as efficiently as possible and won’t have any issues while out on the road.

Remove all your belongings from the RV

Before de-winterizing your Keystone RV, it is important to remove all of your belongings from the vehicle. This includes any clothing, bedding, furniture, and anything else that you may have stored inside during the winter season. This will help to create a safer environment while you are working on the RV and also make it easier for you to check all of its systems before hitting the road.

Clean every surface inside and out

It is important to clean every surface inside and out of your Keystone RV. This includes the exterior surfaces, windows, doors, floors, walls, and any other areas that may have been exposed to dirt and debris during the winter season. By taking the time to do this properly, you can ensure that your RV looks its best before starting off on summer adventures.

Test all of the systems before heading out

The last step in de-winterizing a Keystone RV is to test all of the systems before heading out on the road. This means testing both the internal and external lights as well as turning on each appliance and making sure that it works properly. You should also start up your engine and check for any warning lights or problems with acceleration or braking. Once you are sure that everything is working properly, then you can hit the road with confidence!


By following these steps for de-winterizing your Keystone RV, you can ensure that it is ready for summertime adventures. Remember to check all of the necessary fluids and filters, flush out the antifreeze from the water system, and test each of the systems before hitting the road. With a little bit of preparation and maintenance, your RV should be able to handle whatever summer has in store! Good luck!

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