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Sanitize Your Fresh Water Tank | Easy Method

You should sanitize your RV water system at least 2 times a year. Once in the beginning of the camping season and again at the end of the season before winterizing. Clean and safe water is very important to your health.

If your RV has been sitting in storage, or has not been used for awhile, the fresh water storage tank, hot water tank and water lines are a great place for bacteria to grow and you don’t want that to happen. In order to remove these problems from your RV, you should sanitize your water system.

How do you Sanitize Your RV Fresh Water Tank

Sanitizing your RV’s fresh water system involves filling the fresh water system with a solution of household bleach and running the solution through the entire RV water system. Allow it do its job for at least four hours. Finally, flush the system to remove the bleach taste and smell.

  1. Read through these sanitize RV water system steps before you begin!
  2. Some things to consider before you start.
  3. Time, you need at least 5 to 10 hours to complete the task.
  4. Do you have internal and or external water filters? If so, you should change the filters after you have finished sanitizing the RV system.
  5. Do you have a hot water tank? If you do, now might be a good time to flush out your hot water tank.
  6. Drain all of the water out of the water system, this includes hot water tank, fresh water tank, and the water lines and then close all of the drains valves. You do not want to start this process with water that is questionable or of unknown quality in your RV water system.
  7. Determine the size of your RV water system, the fresh water tank plus the hot water tank and 2 to 3 gallons for water lines depending on the size of your recreation vehicle.
  8. Mix 1 cup of household bleach with 1 gallon of clean water and pour into your fresh water using a funnel
  9. Top up the fresh water tank with water.
  10. Run the chlorinated water through all lines (hot and cold one at a time) for one or two minutes, you should be able to smell the chlorine.
  11. Top up the fresh water tank with water again.
  12. Let it sit for 4 hours minimum, over night is better. The most important thing is to wait the appropriate amount of time for the tank to be properly sanitized.
  13. Drain and rinse the water tank and water lines several times with fresh water.
  14. The water should now be safe to drink

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