Salt Water Pool Pros and Cons – Advice from Bob Lowry
Saltwater chlorine generators keep getting sold as a “chlorine alternative,” but the chemistry never changed: a salt pool is still a chlorine pool. You add salt, the cell applies electricity, chloride converts to free chlorine, and that chlorine sanitizes the water just like liquid chlorine or dry chlorine. The big win for many pool owners is convenience and steadier dosing, but the big misunderstanding is thinking sanitation is somehow different. A quick look at any owner’s manual reveals rated production in pounds of chlorine per day, which makes the marketing language hard to defend. For pool service techs, the practical takeaway is simple: test and manage free chlorine and combined chlorine the same way you would in any properly maintained swimming pool. Dialing in salt level and run time is where performance and cost meet. Most manufacturers target roughly 3,000 to 3,500 ppm salt, which can mean hundreds of pounds of salt in an average residential pool. Output is controlled mostly...