Types of Salt for Saltwater Chlorination Pools
If you have a salt chlorinator or are thinking of installing one, it is important to know the main types of salt for saltwater chlorination pools. The quality of the salt you choose directly impacts the efficiency, maintenance, and lifespan of the chlorinator.
How does saltwater chlorination work?
As you may already know, saltwater chlorination is a treatment system in which salt dissolved in the water is transformed into chlorine through electrolysis, minimizing the need for harsh chemicals.
Required salt concentration in pool water
Depending on the type and model of the chlorinator and the type of pool, a different amount of salt will be required:
- UNHEATED Pools ➡️ Between 5 and 6 kg of salt per m³ of water.
- Heated Pools (28-30°C) ➡️ Between 3 and 4 kg of salt per m³ of water.
Most commonly used types of salt in saltwater chlorinator pools
- Sea salt: natural and economical, ideal for the initial fill. Drawback: higher impurity content.
- Vacuum salt: fine, highly pure, dissolves quickly, and makes dosing easier.
- Epsom salts (magnesium sulfate): useful in spas and wellness centers; not recommended as the sole source for domestic chlorinators.
- Multifunction tablets: salt combined with algaecides and flocculants; they simplify maintenance, but compatibility must be verified.
Practical tips
- Use salt with a purity of ≥ 99.4% NaCl.
- Avoid salts with heavy metals or incompatible additives.
- Always follow the manufacturer’s recommendations, as each model has specific requirements.
Conclusion
Choosing quality salt among the different types of salt for saltwater chlorination pools ensures clean, safe water and extends the lifespan of the disinfection system.
If you don’t have a salt chlorinator yet, don’t hesitate to contact us and we will advise you on choosing the most suitable model for your pool.
Salt chlorination for pools is a treatment system that generates pure chlorine from the salt dissolved in the water, through an electrolysis process. A sustainable, automated, and safe treatment for swimming.
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