The answer to 'how to maintain water softener' is to regularly clean and service the unit. This includes checking the salt level, cleaning the brine tank, and regenerating the resin bed. It's also important to monitor the water softener's performance and address any issues promptly.
For best results, you should clean the brine tank every 6-12 months and regenerate the resin bed every 2-4 weeks, depending on your water usage. You can check the salt level monthly and add more salt as needed to keep the tank full. If you notice the water softener isn't working as effectively, it may be time to replace the resin or have a professional inspect the system.