Fresh Water Tank Fresh Water Tank Question: We have (new to us) used Kit Companion and have heard to insure clean water in water tank to fill, put in liquid bleach and drive around for a while to slush the tank then drain, refill & drain again. Is this correct? Answer: It is important to keep your fresh water tank sanitized on a regular basis. For more details on how to do this, please see our page at www.your-rv-lifestyle.com/sanitize-rv.html You may also be interested in the following posts: care-for-rv-fresh-water-tankrv-tipsrv-maintenancefresh-water-tank-clog You can also use our Search Box to take you where you want to go. And be sure to check out all the topics listed on our Site Map. Click here to post comments Return to RV FAQ.