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Swimming pool chemicals - For clear water and safe swimming fun

For many people, a pool is an oasis of well-being where body and mind can relax and all the senses can be stimulated through exercise and enjoyment. To ensure that the swimming pool water remains permanently clear and can be used hygienically, it needs more than just filters and pumps. The right swimming pool chemistry is crucial for water treatment and ensures that bacteria, viruses, algae and other impurities are reliably removed.

At egli jona, we not only build swimming pools, but also supply the right pool technology so that you can enjoy crystal-clear water and clean swimming fun in the long term. We also offer you professional advice so that you know which products to use, in what quantity and with what application. Every swimming pool has different requirements, depending on the water temperature, water hardness, filtration and usage.

Basics of swimming pool chemistry

Pool chemistry forms the invisible basis for every swimming pool. It complements mechanical cleaning by filters and pumps and ensures that the water remains hygienic. Without chemical disinfection, the water would change within a few days, resulting in algae growth, cloudiness, discolouration and unpleasant odours.

The most important tasks of swimming pool chemistry are

  • Water disinfection: Removal of bacteria, viruses and fungi.
  • pH value regulation: Stabilisation of the chemical equilibrium.
  • Algae control: Prevention of green water and deposits.
  • Flocculation: Binding of the smallest dirt particles for better filter performance.
  • Care and overwintering: Protection of the pool and technology in the cold season.
Biopool with sweeping frame on an embankment

The pH value - the foundation of water care between pH minus and pH plus

The pH value is the most important basic parameter in water care and must be checked regularly. It defines whether the water is acidic or alkaline and influences the effect of all other chemicals.

  • A pH value between 7.0 and 7.4 is ideal.
  • If it is too high, lime soaps form, which lead to deposits on tiles and technology.
  • If it is too low, the water becomes aggressive and can irritate the skin and eyes.

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There are two main products for regulation:

  • pH-Minus: lowers the value, usually available as granules, canisters or bags.
  • pH-Plus: raises the value, also available as granules or tablets.

The correct dosage is crucial. egli jona provides you with detailed instructions for use so that the water quality remains stable and the disinfectants can take full effect.

Disinfection - protection against bacteria and viruses

The most important task of swimming pool chemistry is disinfection. It prevents bacteria, viruses and fungi from multiplying in the water and enables healthy water quality.

Chlorination

Active chlorine is the most widely used disinfectant. In the right concentration, it works reliably against germs and ensures hygienic water.

  • Tablets or granules are easy to dose.
  • Chlorine shock or shock chlorination is used when the water is heavily contaminated.
  • The correct chlorine content is between 0.3 and 0.6 mg/l.

Alternative systems

There are other solutions besides chlorine:

  • Active oxygen: gentle method without chlorine odour, particularly skin-friendly.
  • Flocculants: support filtration by binding the smallest particles.
  • Combination products: combine disinfection and pH regulation.
  • Chemical-free cleaning: sustainable, skin-friendly with Living Pool technology

At egli jona, we only use branded products that are suitable for different requirements and applications.

Algae control and water care

Algae are a common problem in swimming pools. They are caused by sunlight, high temperatures and insufficient circulation. However, they can be reliably prevented with the right swimming pool care.

Special chemicals are used to stop the growth of algae. Regular maintenance also prevents discolouration and deposits. In addition, good filtration and sufficient filter runtime help to remove dirt and organic matter.

Overwintering and long-term care

Swimming pools are often simply ignored during the cold season as they are not used, but they need a certain amount of attention during this time too, which should not be underestimated. There are several methods to keep the pool water stable and the pool protected.

Depending on the type of pool, the pool material also has specific requirements and damage should be avoided in order to protect the investment. Special products must be used during winterisation to prevent limescale deposits and algae formation. This not only protects the pool, but also significantly reduces the amount of maintenance and cleaning required in spring.

Practical aspects: Application and dosage

The use of chemicals in swimming pools for water disinfection requires a certain amount of care, as too little product can lead to problems and too much can irritate the skin and eyes and put a strain on health.

  • The dosage depends on the volume of the pool and the current water quality, which must be measured regularly.
  • Canisters, tablets, granules or concentrates offer different application options
  • Even distribution in the water, which is supported by the circulation, is important.

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At egli jona and in our Pool shop you not only get the right products from reliable and efficient brands on the market, but also advice on how to use them safely and efficiently.

Typical problems and their solutions

Turbidity: This turbidity is usually caused by insufficient filtration or an incorrect pH value. Solution: pH correction and flocculant.

Discolouration: These can be caused by metals or organic substances. Solution: targeted water treatment.

Algae: Greenish water due to sunlight. Solution: Combat algae and sludge removal.

Limescale deposits: For high water hardness. Solution: pH-Minus and special care products against limescale.

Living Pool Technology - Bathing without chemicals

In addition to classic swimming pool chemistry, there is an innovative alternative: the Living Pool Technology. It enables crystal-clear water without any chlorine or other chemicals.

Functionality

The water is channelled through a biofilter that binds nutrients. A phosphate filter removes the basis for algae growth from the water and thus prevents it from occurring. The constant circulation ensures oxygen supply and prevents stagnant water in the pool. The result is crystal-clear, skin-friendly water that is comparable in quality and feel to a natural lake. The natural pool does not look any different from a classic pool cleaned with chemicals.

Advantages

  • No chlorine odour, no irritation
  • Sustainable and ecological
  • Lower operating costs due to natural processes
  • Unique bathing experience

Everyday life with Living Pool

Maintenance with the Living Pool technology is uncomplicated, because instead of topping up chemicals, filters are regularly checked and cleaned. The water remains permanently clear without having to worry about chlorine levels or salt content. Families with children and people with sensitive skin in particular benefit from this technology and no longer want to do without it.

Comparison: Use of chemistry vs. Living Pool technology

Aspect Classic swimming pool chemistry Living Pool Technology

Water quality

Clear, but chemically contaminated
Natural, clear and skin-friendly

Maintenance effort

Regular control and dosage
Pool maintenance, no chemicals

Sustainability

Chemicals required
Ecological, resource-saving

Long-term costs

Higher due to use of chemicals
Lower due to natural processes

Bathing experience

Classic, with chlorine odour
Like in a natural lake

Water treatment tips for pool owners

  • Check the pH value and chlorine content regularly.
  • Use high-quality products for swimming pool care.
  • Plan water treatment right from the start, as it is the basis for a clean pool and good water quality.
  • Think about maintenance in winter so that you have less work to do in spring.
  • Check whether the Living Pool technology is suitable for your requirements.

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If you have any questions or doubts, you can rely on the experience of egli jona. Our team will provide you with comprehensive advice on swimming pool chemistry and your pool technology options.

From classic swimming pool maintenance with chemicals to Living Pool technology

The right swimming pool chemistry is the foundation for clear, hygienic and safe swimming pool water. It complements the mechanical pool care provided by filters and pumps and ensures that bacteria, viruses and algae don't stand a chance.

But there is also an alternative to pool water treatment and water disinfection: Living Pool technology. It completely dispenses with chemicals and enables a swimming experience just like in a natural lake. It combines sustainability, comfort and health in a unique way.

With egli jona's experience, you not only get the right products for classic pool maintenance in the best delivery time, but also advice and implementation of modern systems such as Living Pool technology. Contact us without obligation for a personalised consultation. Your swimming pool remains a place of enjoyment, relaxation and quality thanks to well thought-out water care, professional planning and sustainable solutions.

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egli jona ag
Buechstrasse 38
8645 Rapperswil-Jona

TelĀ 055 224 30 30
MailĀ info@eglijona.ch