What kind of salt do you recommend using and do your softeners also use Potassium Chloride in place of salt?

We recommend buying salt for your water softener that is very clean; around the 99.5% salt content and up. All softeners can use Potassium Chloride in place of salt…and we recommend the crystal over pellet. Pellets tend to melt when they get wet, sometimes forming a “bridge” inside the salt tank, and recommend filling the brine tank about ¾ full, so you can easily monitor it going down inside the tank after the unit regenerates.