I was advised long ago that salt buildup was a common problem in Arizona, particularly in areas receiving heavy water and/or with poor drainage.

My nurserymen recommended working gypsum into the soil to correct the problem.

After reading the recent article about problems on the golf courses locally, I checked Google and learned that the two major salt contributors are sodium chloride and potassium chloride, and that gypsum is still the best solution to excess salt build up along with insuring good drainage and not over watering.

While the water that reaches our treatment plant no doubt contains some salt residue, it would seem then that switching our water softeners to potassium chloride would not solve the problem.