Salt Pool vs Chlorine Pool: What Actually Changes

What is the same

Chlorine target range: 1 to 3 ppm free chlorine.

pH, alkalinity, CYA targets: all identical to a traditional chlorine pool.

Same need for brushing, filtration, and weekly testing.

What is different

No more pouring shock or hauling chlorine tabs. The cell makes chlorine continuously.

Higher upfront cost: $1,500 to $2,500 for the salt cell system, plus annual replacement of the cell every 3 to 5 years ($400 to $800).

pH tends to drift up over time because of the electrolysis process. Plan to add acid every 2 weeks.

Lower operating cost long term: $100 to $200 per year in salt vs $400 to $700 per year in traditional chlorine for a typical pool.

Things people get wrong

'Salt pools do not need chlorine testing.' Wrong. You still test weekly. The cell can fail, salt can drift, CYA can lock up the chlorine.

'Salt pools are gentler on skin.' Partly true. The lower direct chlorine concentration at any moment feels softer, but balanced chemistry matters more than salt vs chlorine.

'You never have to shock a salt pool.' Wrong. Heavy bather load, algae, or a long stretch of clouds means you boost the cell or add a separate dose.

Maintenance you cannot skip

Inspect the cell every 2 weeks for calcium scale buildup. Light scale brushes off. Heavy scale needs acid wash every 3 to 6 months.

Maintain salt at 3000 to 3500 ppm. Too low damages the cell, too high corrodes equipment.

Keep CYA at 60 to 80 ppm in a salt pool (higher than traditional). The cell produces low chlorine continuously, so more stabilization is needed.