Quick answer
A salt water pool is still a chlorine pool. A salt chlorine generator turns dissolved salt into chlorine automatically, so you’re not buying and adding chlorine by hand. Salt pools feel softer and take less day-to-day work. The trade-offs are a higher upfront cost, a salt cell that eventually needs replacing, pH that tends to drift upward, and extra care around some metals and natural stone. Traditional chlorine costs less to start but needs more regular dosing.
“Should we go salt?” is one of the most common questions we hear from Hudson Valley homeowners, whether they’re planning a new pool or thinking about converting one they already have. Both systems keep water clean and safe. The right choice depends on your budget, your pool and how hands-on you want to be.
How a salt water pool works
In a salt pool, you add pool-grade salt to the water. As water flows through the salt cell, installed in the plumbing after the filter, a low electrical charge converts some of the salt into chlorine. That chlorine sanitizes the pool the same way any chlorine does, then turns back into salt, and the cycle repeats. You add more salt only to replace what’s lost to splash-out, backwashing and rain.
The water isn’t anywhere near as salty as the ocean. Hayward recommends about 3,200 ppm of salt for its Aqua Rite system, with a working range of 2,700–3,400 ppm. Ocean water is about 35,000 ppm, according to the USGS, so a salt pool has roughly a tenth as much salt.
Salt water vs. chlorine at a glance
| Salt water pool | Traditional chlorine pool | |
|---|---|---|
| Upfront cost | Higher: generator, cell and installation | Lower: a chlorinator or floater plus chemicals |
| Ongoing cost | Salt, pH balancer, a little electricity, and a replacement cell every several years | Regular chlorine tablets, liquid or shock all season |
| Day-to-day effort | Low: chlorine is made automatically | Moderate: add and store chlorine regularly |
| How the water feels | Softer and silkier to most swimmers | Can feel harsher if levels aren’t kept steady |
| Water chemistry | pH tends to rise and needs regular lowering | Chlorine levels rise and fall between doses |
| Equipment and surroundings | Salt can be hard on some metals, natural stone and older equipment | No added salt concerns |
| Cold water | Many cells stop producing chlorine in cold water. Hayward Aqua Rite shuts off below 50°F. | Works at any water temperature |
The benefits of a salt water pool
- Steadier chlorine levels. The generator produces chlorine continuously, so you avoid the peaks and valleys of manual dosing.
- Less handling and storing of chlorine. You aren’t carrying buckets of tablets or jugs of liquid all summer.
- Softer-feeling water. Many swimmers find salt water gentler on their eyes and skin.
- Lower chemical spending over time. Hayward says salt chlorination can save up to 50% compared with traditional chlorine. Your actual savings depend on pool size and use.
The downsides to consider
- Higher upfront investment. The system and installation cost more than a traditional chlorine setup.
- The cell wears out. Salt cells need regular inspection and cleaning, and eventually replacement. Many owners get about five to seven years from a cell, depending on use and water balance.
- pH creeps up. Salt pools tend to push pH higher, so you’ll add acid more often to keep it in the 7.2–7.8 range.
- Salt and certain materials don’t mix. Hayward notes that too much salt can be corrosive to decks, railings and equipment. Proper salt levels, bonding and grounding matter.
- Shoulder-season gaps. In our Hudson Valley springs and falls, water can drop below the temperature where the cell works, so you may need to add some chlorine by hand early and late in the season.
Is salt right for your pool?
Salt systems are a popular upgrade for in-ground pools, including vinyl-liner pools. Before converting an existing pool, and especially an above-ground pool or any pool with metal walls, ladders or a heater, check that your pool and equipment are rated for salt and that converting won’t affect your warranties. If you have natural stone coping or a stone patio next to the pool, factor that in too.
Good news if you already have a chlorine pool: converting usually doesn’t require draining. The cell and controller are added to your existing equipment, the right amount of salt is added to the water, and the system takes over from there.
Maintaining a salt water pool
- Test salt levels regularly and top up after heavy rain, backwashing or refilling.
- Watch your pH and lower it as needed. This is the biggest routine job in a salt pool.
- Keep stabilizer in range. Hayward recommends about 80 ppm of cyanuric acid for Aqua Rite systems, to protect the chlorine the cell makes from sunlight.
- Inspect and clean the cell. Hayward recommends checking it about every three months for scale buildup.
- Winterize the cell and controller when you close the pool. See our pool closing checklist.
Not sure where your water stands? Bring a sample to our Poughkeepsie store for free water testing. We carry the Hayward Aqua Rite salt system and can help you decide whether salt makes sense for your pool.
Frequently Asked Questions
Is a salt water pool chlorine-free?
No. A salt chlorine generator converts salt into chlorine, which is what sanitizes the water. You just aren’t adding chlorine by hand.
Does a salt water pool taste salty?
Most people barely notice it. At the recommended level of about 3,200 ppm, a salt pool has roughly a tenth of the salt of ocean water. Hayward notes that water starts to taste salty above about 3,500–4,000 ppm.
Can I convert my existing pool to salt water?
Usually, yes, and without draining. A salt cell and controller are added to your existing equipment and salt is added to the water. Check first that your pool walls, ladders, heater and other equipment are rated for salt.
Do salt water pools work in cold weather?
Salt cells stop producing chlorine when the water gets cold. Hayward’s Aqua Rite shuts off below 50°F. In the Hudson Valley, you may need to add some chlorine by hand early and late in the season.
How long does a salt cell last?
Many owners get around five to seven years, depending on how much the system runs and how well the water is balanced. Cleaning the cell regularly and keeping pH in range help it last.
Questions about your pool?
Stop by our Poughkeepsie store at 1820 New Hackensack Road or call (845) 297-0004. We're happy to help.
