Fill your fresh water tank halfway full.
Fill a plastic bucket with water and mix a 1/4-cup bleach for every 15 gallons of tank capacity.
Use the funnel to empty the bucket mixture into the fresh water tank.
Attach a hose and finish filling the tank
Take the RV for a drive to slosh the mixture around the tank.
Let the mixture sit in the tank for 12 hours.
Empty the holding tank completely by opening all faucets. If your rig is equipped with an outside water faucet, open that one too.
Mix two cups of baking soda with a gallon of water and pour the mixture into the tank. Refill the tank with fresh water using the fresh water hose with inline filter attached.
Take the RV for a drive to allow the fresh water to slosh around the tank and eliminate any remaining chlorine taste and smell.
Let the mixture sit in the tank for at least 2 hours.
Empty the fresh water tank completely and refill again using the fresh water hose with inline water filter attached. You are now ready to go camping with a disinfected tank and safe drinking water.
