Salt chlorinator for pool: is the change worth it?

What exactly is a saltwater chlorinator and how does it work?

A saltwater chlorinator does not eliminate the chlorine from your pool. It generates it continuously and automatically from the salt you add to the water. The process is called electrolysis: a small electric current passes through a titanium cell and breaks down the salt (sodium chloride) into natural chlorine.

The interesting thing is that this chlorine, once it does its job disinfecting, turns back into salt. It is a closed cycle. That’s why salt consumption is minimal once the system is up and running.

Direct answer: A saltwater chlorinator automatically generates chlorine from common salt. You do not eliminate chlorine, but you stop buying and adding it manually.

The real problem your pool has right now.

If your pool smells strongly of chlorine, the paradox is that it probably has too much combined chlorine (chloramines), not free chlorine. Chloramines form when chlorine reacts with organic matter: sweat, sunscreen, urine (let's be honest, it happens in all pools).

It is the chloramines that:

They irritate the eyes and skin.
They give that characteristic "pool" smell.
They discolor swimsuits.
They require continuous shock chlorination.

With a saltwater chlorinator, chlorine is generated constantly and at low but stable levels. This prevents the accumulation of chloramines. The result: the water smells less, stings less, and maintenance becomes almost automatic.

Real example: A family with a 40 m³ pool in Valencia spent about €300 a year on chlorine tablets, plus time each week measuring and adjusting. After installing a saltwater chlorinator, the salt expense is about €20-30 annually. The initial investment pays off in 2-3 seasons.

Who is especially suited for a saltwater chlorinator?

It is not a universal solution for everyone. It is especially beneficial if:

You have children who spend many hours in the water and suffer from irritations.
A family member has sensitive skin, eczema, or allergies.
Your pool is used very frequently (more than 3-4 days a week in summer).
You are tired of weekly maintenance and want to automate it.
You have a pool at a second home and cannot keep an eye on it every week.

If you use your pool 15 days a year, it may not make much economic sense. But if it is used regularly, the numbers add up.

How much salt does a pool have? Does it taste like the sea?

This is the question we hear most often. The salt concentration in a saltwater pool is between 3 and 5 grams per liter. Seawater has between 35 and 40 g/l. In other words, the water in your pool will have approximately 10 times less salt than the sea.

Most swimmers do not notice any salty taste. Some even say the water "tastes cleaner." What is noticeable is that it irritates less.

Which salt chlorinator to choose according to the size of your pool

Chlorine production is measured in grams per hour (g/h). The general rule is that you need approximately 1 g/h for every cubic meter of water, although it's always better to go slightly above to cover usage peaks in summer.

Small pools (up to 10 m³)

For jacuzzis, plastic pools, or small inground pools, the POOLEX Turbo Salt TS100 Salt Chlorinator is a compact option, easy to install, and with 4 operating modes to adapt to actual use.

Medium pools (15-30 m³)

The most common range in family pools. The POOLEX Turbo Salt TS200 or the TS300 fit perfectly here. These are the models we install the most: a perfect balance between capacity and price.

Large pools (40-60 m³)

For larger pools, the TS400 or the TS600 are the right choice. Don't skimp on production: if the chlorinator is always at 100%, it wears out faster.

Community or large pools (up to 80 m³)

The TS800 covers large volumes with sufficient production to maintain stable levels even on peak days.

If you prefer a recognized brand in the industry with decades of experience, the AstralPool Clear Connect 30 g/h is a very solid option for pools up to 80 m³ with advanced control.

What about the pH? Is it still necessary to adjust it?

Yes, and it's important to know this before buying. Salt chlorinators tend to slightly raise the pH of the water (to values of 7.8-8.0). If you don't control it, chlorine loses effectiveness even if the chlorinator is working well.

The solutions:

Automatic pH- dispenser: the most convenient, directly connected to the system
Control manual with pH- liquid or powder: cheaper but requires weekly checks
Some advanced models include an integrated pH probe that regulates everything automatically.

In any case, total maintenance is still much lower than with traditional chlorine.

Installation: Can I do it myself?

In many cases, yes. Salt chlorinators are installed in the filtration circuit, after the filter and before the heater (if you have one). The electrolysis cell is placed in the return pipe and the control panel in a protected location.

If you have a bit of skill with basic plumbing and follow the manufacturer's instructions, it can be installed in a morning. If you don't feel up to it, any pool maintenance company can do it in 2-3 hours.

Frequently asked questions about salt chlorinators

How long does a salt chlorinator cell last?

It depends on the model and usage, but under normal conditions, between 3 and 7 years. Maintaining the correct pH and not overusing the boost mode significantly extends its lifespan.

Can I use a salt chlorinator with a liner pool?

Yes, no problem. The salt concentration used by the chlorinator does not damage the liner or the conventional filtration system.

What happens if I go on vacation for a month?

If you have a salt chlorinator with a programmable timer (most do), you can leave it running in reduced mode. When you return, the water will still be in good condition. This is practically impossible with traditional chlorine if no one checks the pool.

Does it work with any type of filter?

Yes, it works with sand, cartridge, and glass filters. The type of filtration does not affect the operation of the salt chlorinator.

Does salt water damage metal accessories?

At those concentrations (3-5 g/l), the effect on quality stainless steel or materials designed for pools is minimal. You should avoid aluminum accessories or low-quality metals, but this is a recommendation that applies to any pool treated with chlorine.

Conclusion: Is it worth it or not?

If you use your pool regularly, the answer is almost always yes. Not because it is the perfect solution (the pH still needs to be monitored, and the installation has an initial cost), but because the balance between convenience, medium-term savings, and water quality is clearly favorable.

The first summer with a salt chlorinator is usually the point of no return: when you see that the water is perfect, that you don't have to rush to buy tablets on Sunday afternoon, and that the kids come out without red eyes, it's hard to go back.

If you have questions about which model fits your pool best, check out our selection of salt chlorinators or write to us. We review each case and let you know without obligation what makes the most sense for your situation.

Salt chlorinator for pool: Is the change worth it? Everything no one tells you.