Common misspellings of the word scale are: 1  scale in french. 2  scale in spanish. 3  scale in german.  scale in 1  italian. scale in portuguese.
Designed specifically to sanitize hard non-porous surfaces of water holding tanks in RVs, trailers, campers and boats. 1  Easy-to-Use 2-Part System Step 1: Clean tank with detergent and rinse. Step 2: Sanitize tank with sanitizer. 2  Effective even in hard water. 3  Will not leave grit or soap scum.  Not a drinking water additive.
Click here to find Slunky sewer hose support: http://tinyurl.com/khullxj. We've been drinking the water from our RV's fresh water tank for over a decade without a problem. It's perfectly safe to do, as long as you sanitize your fresh water system periodically.We do ours about twice a year (keep in mind that we're full-timers...lick here to find Slunky sewer hose support: http://tinyurl.com/khullxj. We've been drinking the water from our RV's fresh water tank for over a decade without a problem. It's perfectly safe to do, as long as you sanitize your fresh water system periodically.