What types of salt does it use? Which is recommended to remove Iron?

The 46,000-Grain Pro Series Wi-Fi Enabled Smart Water Softener is designed to use water softener salt in pellet, crystal, or solar salt form. For homes with iron in the water, we typically recommend using high-purity pellet salt or solar salt, as these options help reduce buildup and maintain optimal performance. If you have any additional questions or would like personalized recommendations based on your water conditions, please feel free to call us at 1-866-986-3223.