Water Salt crystals are usually found in two different forms: halite and solar salt. halite is mined from the bottom like other minerals, and Water Softener Salts usually contains the best level of impurities. These impurities can increase the likelihood of salt bridging and mushing. the utilization of halite also will cause the buildup of debris within the brine tank which will got to be cleaned out periodically. The advantage of halite is that it's quite inexpensive.Solar salt is made through the evaporation of present brine, like sea water. Brine ponds are exposed to the sun and wind, and therefore the brine solution concentrates over time until it becomes a solid mass. Solar salt tends to be cleaner than halite but doesn't have an equivalent purity level as salt pellets.