UV-C light against algae in the pool: environmentally friendly pool care

Algae in the pool are a common problem experienced by many pool owners. Despite considerable investment in pool equipment and accessories, floating algae, filamentous algae and blue-green algae can occur. These are not only unsightly, but also significantly affect the water quality. Algae can increase the pH value of the pool water, which can lead to corrosion of pumps and pipes. However, there are effective solutions to counteract this algae plague.

Causes of algae growth in the pool

Algae growth in the pool can be promoted by various factors. One of the main reasons is inadequate pool maintenance, in particular insufficient filtration and disinfection. High temperatures and sunlight also promote algae growth, as algae are photosynthetically active. An uneven or too high pH value can also promote algae formation, as can the presence of nutrients in the water introduced by leaves, pollen or fertilizers.

Basics of pool maintenance

Regular and thorough pool maintenance is crucial to prevent algae in the pool. This includes regularly checking and adjusting the pH value, cleaning the filters and removing dirt and leaves from the water. Good water circulation is also important to distribute nutrients evenly and avoid stagnant areas where algae can thrive. Mechanical pool cleaners can help with this by keeping the bottom and walls of the pool clean.

Disinfection with chemicals: advantages and disadvantages

The use of disinfectants is often necessary for clear pool water. Chemical methods, especially chlorination, are widely used. Chlorine disinfects the water by killing microorganisms, including algae. However, chlorine can increase the pH value, which in turn necessitates the use of pH reducers. This chemical balance must be carefully monitored to avoid skin and eye irritation.

Flocculants are often used in conjunction with chlorine to bind and remove the finest suspended solids. However, these chemicals also have disadvantages: they can make the water aggressive and require careful handling. They are also harmful to the environment, as the water has to be disposed of as hazardous waste after treatment and cannot be used for irrigation.

UV-C disinfection: an environmentally friendly alternative

An environmentally friendly alternative to chemical disinfection is to treat the pool water with UV-C light . This physical method uses a UV-C system that is installed between the filter and the pool water circuit. The UV-C light destroys the DNA of the algae cells, rendering them inactive and preventing them from reproducing.

Advantages of UV-C disinfection:

1. No chemical residue: The water remains free of chemical residues that are potentially harmful to humans and the environment.
2. Lower operating costs: UV-C systems are expensive to purchase, but the long-term costs are lower as no chemical post-treatment is required.
3. Safe for humans and animals: UV-C light is harmless to humans, plants and animals as it only works in the closed system of the water cycle.

Long-term algae prevention: tips and tricks

A combination of preventative measures and regular maintenance is necessary to permanently prevent algae in the pool. Here are some tried and tested tips:

1. Regular water analysis: Check the pH value and alkalinity of the water on a weekly basis. A pH value between 7.2 and 7.6 is ideal for inhibiting algae growth.
2. Good water circulation: Make sure that your pool pump is working efficiently and that the entire volume of water is circulated regularly. Avoid blind spots in the pool where the water could stagnate.
3. Use of algaecides: During periods of increased algae growth risk, such as hot summer months, the precautionary use of algaecides can be helpful. These special chemicals prevent the growth of algae, but must be dosed according to the manufacturer's instructions.
4. Cleaning the pool accessories: Ladders, covers and toys can also carry algae spores. Clean these regularly to prevent them from spreading.

The dream of a crystal-clear pool: achievable and sustainable

Every pool owner dreams of a crystal-clear, algae-free pool that is a visual highlight in the garden and invites you to swim. With the right combination of physical and chemical methods, careful maintenance and the use of environmentally friendly disinfection technologies such as UV-C light, this dream can become a reality.

Conclusion: Clean water through sustainable care

Algae in the pool is an avoidable problem with the right care and maintenance. By combining modern technology and proven methods, water quality can be sustainably improved. UV-C disinfection offers an environmentally friendly and safe alternative to chemical disinfection methods and helps to keep the pool clear and algae-free. So you can enjoy the summer in a crystal-clear pool without having to worry about algae growth and water quality.