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.
* If you used non-toxic RV antifreeze open all drains and drain the antifreeze from the system into a container. If you do not have a bypass kit on the water heater, drain the antifreeze from the water heater. * If you put any antifreeze in the fresh water holding tank be sure and drain it. * Close all of the drains. If you used non-toxic RV antifreeze open all drains and drain the antifreeze from the system into a container. If you do not have a bypass kit on the water heater, drain the antifreeze from the water heater. * If you put any antifreeze in the fresh water holding tank be sure and drain it. * Close all of the drains.