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.
Fill the fresh water holding tank to the desired level. Go inside the RV and turn on the water pump. It will run until it thinks the lines have been primed, but there could be some air in the lines as well. Open the faucet that is closest to the water pump until the air has been purged from the lines.