Saltwater vs Chlorine Pools: Which Is Right for You?

Every pool needs a sanitizer — something that kills bacteria and keeps the water safe. The debate isn't really "salt versus chlorine." Saltwater pools still use chlorine; they just make it on-site instead of buying it in tablets or jugs.

A salt chlorine generator (SCG) runs a low electrical current through salty water and converts sodium chloride into hypochlorous acid — the same active sanitizer in store-bought chlorine. The salt level in a saltwater pool is roughly the salinity of a tear, not ocean water.

So the real question is: do you want to generate your own chlorine automatically, or manage it the traditional way?

Traditional chlorine pools use tablets, granules, or liquid chlorine added manually or through a dispenser or feeder. You test the water 2–3 times a week, adjust levels, and restock supplies when you run low. It's direct and predictable.

Saltwater pools rely on a chlorine generator cell plumbed into the return line. Set the output percentage on the controller, and the cell runs as long as your pump runs. You still test the water — pH in particular drifts in saltwater systems — but you're adjusting settings instead of scooping product. The generator requires inspection of the cell every few months to clear mineral scale.

Neither system is fully hands-off. Both reward a steady routine over reactive fixes.

This is where many buyers feel the biggest difference. Traditional chlorine pools, when properly balanced, are gentle enough. But when chlorine combines with nitrogen from sweat and oils, it forms chloramines — the compound responsible for that sharp "pool smell" and eye irritation. Poorly maintained traditional pools can become uncomfortable.

Saltwater pools produce lower concentrations of chloramines under normal use because the generator outputs a steadier, lower-level dose rather than periodic spikes. The result: water that many swimmers describe as softer and less harsh.

For families with children who swim frequently, or anyone with sensitive skin or eyes, the softer feel of a well-maintained saltwater pool is a genuine quality-of-life benefit.

Upfront: Adding a quality salt chlorine generator typically adds $1,500–$3,000 to the initial build or retrofit cost, depending on pool size and the unit chosen. NEXA pools come automation-ready, so the integration is clean and controlled from a single app.

Ongoing: Chlorine itself is cheap. Bags of pool salt run $5–$10 each, and a typical pool needs one or two top-offs per season. You eliminate the cost of chlorine tablets or liquid delivery — which can run $200–$600 per year depending on use. Over five to seven years, saltwater systems often break even on chemistry costs alone.

The catch: The generator cell is a wear item. Most cells last 5–7 years before output degrades and replacement becomes necessary. A replacement cell costs $400–$900. That's a known, plannable expense — not a surprise, just something to budget for.

Traditional chlorine has no such equipment to replace, which makes it the lower-cost option upfront and less exposed to a single repair item. Long-term total cost of ownership lands fairly close between the two.

Salt water is corrosive at scale. For typical residential pools, this matters mainly at the margins: some older or budget-grade pool equipment, lighting fixtures, or stone surrounds can degrade faster in saltwater environments. High-quality stainless, titanium-cell generators, and sealed LED fixtures are all rated for saltwater use.

NEXA pools are specified with materials and equipment compatible with either system, so you're not locked in or constrained at build time. If you decide to switch later — traditional to saltwater or vice versa — the plumbing and electrical are already in place.

Saltwater tends to suit: Families who swim often and want consistently gentle water. Buyers who prefer automation and fewer manual additions. Households where skin sensitivity or allergy to chemical odors is a factor. Anyone building a long-term backyard investment and willing to budget for cell replacement down the road.

Traditional chlorine tends to suit: Buyers who want the lowest upfront cost. Vacation or part-time-use pools where simplicity of occasional manual treatment works fine. Owners who prefer direct hands-on control without relying on generator output settings.

Both systems maintain safe, clean water when properly managed. The difference is feel, automation preference, and how you want to spend your maintenance time.

All NEXA models — from the compact NEXA 12 to the deep-water NEXA 26 — are built automation-ready. A single controller handles pump scheduling, lighting, and your sanitizer system, whether that's a salt generator or a traditional feeder. You can start with one system and upgrade without re-plumbing.

NEXA packages start from $54,900. Exact pricing depends on your site, model, and options — all confirmed at a free in-home design review. CSLB #1019202.