Yes i think it will,think that is
i install evaporitive coolers alot in the desert and we cant hook any type of soft water system to them.I called a rep from a softener company our plumbing dept uses to ask if its ok to purge into the tree wells and onto the grass from a softener useing potassium chloride and he didnt suggest it cause over time it will biuld up and cause problems.hope that helps a bit
jason