The essential chemical for pool disinfection and cleaning treatments. Discover our wide range of chlorine shock treatments and products designed to maintain the perfect chlorine balance in your pool.
Pool chlorine is the most widely used disinfection system for keeping pool water clean, crystal clear, and free from bacteria, algae, and microorganisms. Thanks to its high effectiveness, it remains the preferred solution for both private and public swimming pools.
At Mercapool, you will find a wide variety of chlorine products adapted to different pool maintenance and water treatment needs.
What is chlorine used for in a swimming pool?
Chlorine acts as a disinfectant by eliminating microorganisms, bacteria, and organic matter present in the water. It also helps prevent algae growth and keeps the water in optimal swimming conditions.
Maintaining the correct chlorine level is essential to ensure pool hygiene and swimmer safety.
Types of pool chlorine
Chlorine tablets
The most common format for continuous pool maintenance. Chlorine tablets dissolve slowly, providing constant disinfection.
Granular chlorine
Ideal for shock treatments and recovering green or poorly sanitized pool water.
Liquid chlorine
Widely used in automatic pool systems and professional dosing installations.
Multifunction chlorine
Combines disinfection, algae prevention, and flocculant action in a single product for easier pool maintenance.
Advantages of chlorine pool treatment
Highly effective disinfection: eliminates bacteria and microorganisms.
Crystal-clear water: keeps the pool clean and transparent.
Easy application: available in different formats for every need.
Compatible with all pool types: above-ground, in-ground, and spas.
Wide variety of treatments: daily maintenance and shock treatments.
How to maintain the correct chlorine level
For proper maintenance, it is important to regularly check chlorine and pH levels in the water.
Recommended chlorine level: between 1 and 3 ppm.
Recommended pH level: between 7.2 and 7.6.
Excess chlorine may cause irritation to the eyes and skin, while low chlorine levels reduce the water’s disinfecting capability.
Chlorine shock treatments
Shock chlorine treatments are used to quickly recover water quality after intensive use, rain, high temperatures, or algae growth.
This type of treatment temporarily increases chlorine concentration to eliminate contaminants and restore water quality.
Accessories and complementary products
At Mercapool, you will also find complementary products for pool maintenance:
Chlorine dispensers.
Water testing kits.
pH regulators.
Algaecides and flocculants.
Automatic dosing systems.
Discover the best pool chlorine products at Mercapool
Browse our catalogue of pool chlorine products and keep your pool water clean, safe, and crystal clear throughout the swimming season with high-quality solutions.