Swimming Pool Chlorination

Since the 1970’s, we offered solutions for salt water pool chlorination, from the initial static polarity technology to the self-cleaning product based on current reversal technology.

Say goodbye to chlorine odors, irritated eyes, hair damage and faded swimsuits caused by excessive disinfection by-products and over chlorination. Common salt and electricity generate a consistent and proper amount of pure chlorine solution in a safe, simple and cost effective way to disinfect pools.

We are committed to improving your recreational water quality, while using a green, recyclable treatment process.

Benefits of Salt Chlorination

Pool water has a silky, luxurious feel for the optimum swimming experience
Consistent generation of chlorine disinfectant helps prevent chlorine spikes or algae episodes
Minimized maintenance with many automated systems available
Reduced chemical storage and handling
Typical 3-5 year chlorinator lifetimes means fewer trips to the pool store since the disinfectant is made on-site

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Our Legacy

In 1982, the first specific DSA^®electrode for pools application was manufactured, and has shown outstanding performance ever since making it the most validated anode in the field to date.

De Nora DSA^® electrode for swimming pool electrochlorination is a specialized technology found in all major swimming pool equipment manufacturers worldwide. The versatility of the product allows for use in residential, spa and commercial applications.

Recommended Operating Conditions:

Salt (sodium chloride) range of 2-6 g/L
Water temperature: 15-40°C
Follow national standards for pool chemistry including disinfectant levels and saturation index parameters
Stabilizer levels of 30-50 ppm for outdoor facilities

De Nora DSA® Electrode Advantages

Validated and reliable electrochemical technology for pool water disinfection
De Nora has the longest experience in electrode catalyst coating development
Significant resources committed to continuous product improvement
Self-cleaning product designed specifically for pool use

Technical Information

When the salt chlorinator is energized, the electrodes catalyze reactions with the sodium chloride and water molecules at the anode and cathode surfaces to generate the chlorine disinfectant
Chlorine is in the form of hypochlorous acid and sodium hypochlorite in the pool water, and the ratio of the two is pH dependent
When the chlorine disinfectant kills or inactivates pathogens and oxidizes organics/contaminants, the chlorine returns to the native state as salt (NaCl) in water as a recycling process

Overall Chemistry Reaction:

NaCl + H2O + electricity --> NaOCl (disinfectant)

Primary Anode Reaction: 2 Cl- - 2 e- ⇒ Cl₂

Primary Cathode Reaction: 2H₂O + 2 e- ⇒ H₂ + 2 OH-