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Pool Algaecides

Algae generate unwanted organic matter in swimming pools. Discover our range of pool algaecides and effective algae treatments to keep your pool water clean and crystal clear.

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Pool algaecides: clean and crystal-clear water

Pool algaecides are essential products for preventing and eliminating algae growth in swimming pool water. Thanks to their preventive and disinfecting action, they help maintain clean, transparent, and healthy pool water throughout the swimming season.

At Mercapool, you will find algaecide treatments suitable for all types of pools, from above-ground pools to large in-ground swimming pools.

Why does algae appear in pools?

Algae usually develop due to chemical imbalances, high temperatures, insufficient disinfection, or poor filtration systems.

When algae spread, pool water may become green, cloudy, and slippery, affecting both the appearance and safety of the pool.

Advantages of using pool algaecides

  • Prevents algae growth: avoids green water and slippery surfaces.
  • Keeps water crystal clear: improves water transparency and cleanliness.
  • Reduces maintenance: minimizes the need for intensive recovery treatments.
  • Compatible with other treatments: works alongside chlorine, bromine, or salt chlorination systems.
  • Protects pool equipment and surfaces: prevents organic buildup inside the filtration circuit.

Types of pool algaecides

Preventive algaecides

Ideal for continuous maintenance and algae prevention throughout the swimming season.

Concentrated algaecides

Stronger formulations designed for pools with recurring algae problems or severe contamination.

Shock treatment algaecides

Designed to quickly recover green or heavily contaminated pool water.

Foam-free algaecides

Especially recommended for spas, jacuzzis, and hydromassage systems.

How to properly use pool algaecides

For best results, it is important to:

  • Maintain water pH between 7.2 and 7.6.
  • Apply the dosage recommended by the manufacturer.
  • Perform regular preventive treatments.
  • Combine treatment with proper filtration.
  • Use pool cleaners and brushes to remove attached residues.

What to do if your pool water turns green

When algae are already present, it is recommended to carry out a shock treatment combining:

  • Shock chlorine.
  • Concentrated algaecide.
  • Continuous filtration.
  • Brushing pool walls and floor.

This process helps quickly restore water clarity and quality.

Complementary products for pool water maintenance

At Mercapool, you will also find complementary products to maintain perfect pool water:

  • Pool chlorine.
  • pH regulators.
  • Flocculants and clarifiers.
  • Water testing kits.
  • Automatic dosing systems.

Discover the best pool algaecides at Mercapool

Browse our catalogue of pool algaecides and keep your swimming pool water clean, transparent, and algae-free all season long.