When winterizing your camper, one of the most important things to do is to add antifreeze. Antifreeze will help protect your camper's plumbing from freezing and bursting. It is important to add antifreeze to both the fresh water system and the waste water system.
To add antifreeze to the fresh water system, start by draining all of the water out of the tank. Then, fill the tank with a mixture of 50% water and 50% RV-safe antifreeze. Once the tank is full, turn on all of the faucets in your camper and let them run until you see pink antifreeze coming out of them. Finally, turn off all of the faucets and put a cap on the fresh water tank.
To add antifreeze to the waste water system, start by flushing all toilets in your camper several times until they are empty. Then, pour RV-safe antifreeze into each toilet bowl until it is full. Next, open up all of your drains (sink, shower, etc.) and let them drain until you see pink antifreeze coming out of them. Finally, close all drains and put a cap on each one.