I researched the site but did not find a definitive answer or help on installing a stand alone water softener to the fill line of a swimming pool. I was looking at installing a Rheem single softener unit to help with the hardness here in Arizona. After year 2 my pool is over 600 hardness and the water out here in the desert is so harsh. I have a Softener on my house and it works great but there is no way (without great expense) to tap into it. The unit I was looking at was a Rheem 32K unit and could easily be integrated into my system for $300. Any thoughts on this, or other methods used in AZ to control hardness would be appreciated.