I have a salt water pool – I don’t need chemicals and my pool doesn’t use chlorine.

In a salt pool, chlorine is produced from salt using a Salt Chlorine Generator  rather than adding chlorine to the pool directly. A salt pool is still being sanitized by chlorine. The same amount of chlorine is required to maintain the same effectiveness in a salt pool as a traditional chlorine pool. A properly maintained salt pool has just as much chlorine as a traditional chlorine pool. Salt water pools require all the same maintenance functions and still must be checked and balanced regularly.