Best Salt Chlorine Generators
A salt chlorine generator makes chlorine from dissolved salt, so you stop hauling jugs and the water feels softer. It is still a chlorine pool; the cell just produces the chlorine for you. Here are the picks and how to size one.
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Hayward AquaRite or Pentair IntelliChlor
Who it is for: In-ground pools that want a proven, well-supported system with parts and help easy to find.
- +The most widely used systems, so guides, replacement cells, and support are everywhere.
- +Reliable output and clear readouts for salt level and cell life.
- +Cell sizes to match a range of pool volumes.
Watch out: The replacement cell is the real long-term cost, and it wears out every few years. Size up so the cell is not running flat out.
CircuPool or similar value brand
Who it is for: Owners who want most of the performance for less, and often a longer cell warranty.
- +Lower upfront cost than the big-name systems.
- +Often ships with a longer cell warranty, which offsets the main running cost.
- +Plenty of output for typical residential pools.
Watch out: Smaller dealer network than the major brands, so local support may be thinner. Check the warranty terms carefully.
Intex or above-ground saltwater system
Who it is for: Above-ground pools that want saltwater convenience without an in-ground install.
- +Designed for above-ground plumbing and smaller volumes.
- +Simple to install and affordable to start with saltwater.
- +Takes the chlorine-jug chore off a seasonal pool.
Watch out: Lower output and shorter lifespan than in-ground cells; really sized for smaller pools only.
What actually matters when buying
Size the cell above your pool. A salt cell is rated for a maximum pool size. Buy one rated well above your actual volume, not right at it. A cell running at full output all day to keep up wears out much faster, so oversizing is cheaper over the cell's life.
The cell is the real cost. Salt cells wear out, typically in three to seven years, and replacements are expensive. When comparing systems, compare the replacement cell price and warranty, not just the upfront cost. A longer cell warranty can be worth more than a lower sticker price.
It is still a chlorine pool. A salt system does not replace chlorine; it makes it. You still test and manage free chlorine, pH, and especially cyanuric acid, which salt pools want on the higher side to protect the chlorine the cell makes slowly through the day.
Watch pH and alkalinity. Salt chlorine generation tends to push pH up over time, so salt pools usually need acid more often. Keep an eye on pH and total alkalinity, and aim CYA toward the higher end of the range for outdoor salt pools.
How we picked
This is a research-based guide comparing output ratings, cell life and warranty, and a broad set of owner reviews across the established salt-system brands. We do not take payment for placement and have not bench-tested every unit, so confirm cell sizing for your pool before buying.
Keep your water right, too
Gear handles the cleaning; chemistry is the other half. Useful next: pool salt calculator, cyanuric acid calculator, pH calculator.
Frequently asked questions
How do I size a salt chlorine generator?
Buy a cell rated for a pool larger than yours, not exactly your size. A cell sized at your volume has to run near full output constantly to keep up, which shortens its life. Oversizing lets it work easily and last longer, which is cheaper over time.
Is a saltwater pool really chlorine-free?
No. A salt system makes chlorine from salt, so it is a chlorine pool with an automatic chlorine source. You still maintain free chlorine, pH, and cyanuric acid. The benefit is softer-feeling water and no more carrying chlorine jugs, not the absence of chlorine.
How long do salt cells last?
Typically three to seven years, depending on how hard the cell has to work, water chemistry, and how well you clean it. Running an undersized cell at full output all day is the fastest way to wear one out, which is why sizing up matters.
What salt level does a salt system need?
Most generators want salinity in the range of 2,700 to 3,400 ppm, with 3,200 a common target, but always follow your unit's manual. Use a salt calculator with your pool volume to work out exactly how much salt to add to reach the target.