How Do You Dewinterize a Truck Camper?

If you’ve been using your truck camper over the winter, you need to take the time to dewinterize it properly before you hit the open road again. The process of dewinterizing involves a few steps, including draining and flushing all tanks and systems, checking for any damage, and filling the tanks with fresh fluids. This guide will help you get your truck camper ready to go again.

Step 1: Draining and Flushing Tanks

The first step in dewinterizing your truck camper is to drain and flush all tanks. This includes the fresh water tank, black water tank, grey water tank, propane tank, and any other tanks that may have been used during the winter.

Start by draining each tank completely – this should be done in order from cleanest to dirtiest. Once all of the tanks have been drained, flush them out with fresh water several times before refilling them with fresh fluids.

Step 2: Checking for Damage

Once all of the tanks have been emptied and flushed out, it’s time to check for any damage that may have occurred during the winter months. Start by inspecting the exterior of your camper for any signs of wear or tear.

Look for cracked window seals, missing or damaged siding or roofing materials, and other damages that could indicate a need for repair or replacement. Next, inspect the interior of your camper for any signs of mold or mildew growth due to condensation buildup.

Step 3: Filling Tanks

Once all tanks are flushed out and inspected for damage, it’s time to fill them back up with fresh fluids. Start by refilling your fresh water tank with clean drinking water.

Next, fill up your black water tank with a solution designed specifically for holding sewage waste – never use regular tap water here! Finally fill up your grey water tank with clean tap water if necessary – some campers don’t require a grey water tank at all.


De-winterizing a truck camper involves draining and flushing all tanks before checking for damage and filling them back up with fresh fluids. Following this process will ensure that your truck camper is safe to use in warmer weather conditions again.

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Karen Watkins