Salt electrolysis: the alternative to conventional chlorination

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Gentle on the skin

Say goodbye to the unpleasant chemical odours associated with conventional chlorination. Water treated by an EWT system is gentle on the skin and does not irritate the eyes or mucous membranes. Our system is the ideal choice for pools used by children or people with sensitive skin.

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Economically

Enjoy cost savings and cost-effective operation. Our innovative technology not only reduces the need for expensive chemicals, but also significantly lowers operating costs. Thanks to its low energy consumption and durable construction, choosing EWT means investing in cost-effectiveness and quality.

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Environmentally friendly

Our advanced technology not only reduces the use of chemicals but also minimises environmental impact in the long term. We take pride in manufacturing systems designed for long-term operation and backward compatibility. Solutions that gently maintain water quality at the highest standard.

Certified and award-winning.

Certifications guarantee our customers and end users the highest standards of quality, safety and legal certainty. With every system we supply, you will receive our EC certificate included in our operating instructions. This means that, whether you are a pool builder, architect or pool user, you can rest assured.

Membrane electrolysis

Thanks to the continuous addition of highly effective chlorine, in the form of hypochlorous acid, the correct amount of active chlorine is present in the water at all times. This means that even people with sensitive skin can enjoy the pool water. Eye and skin irritation, as well as unpleasant swimming pool odours, are avoided.
The cost of producing active chlorine using an electrolysis system is significantly lower than the price of purchasing standard chlorine bleach. The need for pH-regulating maintenance products is drastically reduced. This, in turn, reduces the risk of accidents. Thanks to modern membrane cell technology, there is no salt build-up in the pool water.

The ECO-a System

Our new ECO-a series offers many of the advantages of our previous systems, combined with new developments and improvements specifically designed for use in swimming pools. In particular, the ability to position the salt and product tanks separately from the system ensures maximum user-friendliness in the planning and operation of your swimming pool.
The integrated control system regulates the output and monitors all operating parameters. The hydrogen produced during the process is separated by a degassing vessel and must be vented to the outside. Fresh sodium hypochlorite enters the product tank without the need for an additional pump and can be dosed from there as required.

Why Elchem Water Treatment?

Elchem Water Treatment specialises in electrochemical water treatment. We understand exactly what it means to choose a company with a view to building long-term, reliable partnerships. We know our partners well, and we know we can always rely on them for quality and flexibility. This is precisely what we wish to offer you. We aim to be your reliable partner for high-quality water treatment systems; as a manufacturer, as a point of contact, and as a company that looks to the future without neglecting tried-and-tested technology. This is also recognised by the swimming pool industry, as we are multiple winners of the Topras Award for ‘Best Product Supplier’. Our team looks forward to meeting you and answering any questions you may have.

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Pool builder

We are proud of our extensive network of pool builders in Germany, Austria, Italy, Switzerland and the Netherlands. Reliable partners and long-term relationships are key factors in our business dealings. We would be happy to recommend the best companies in

End customers

Are you looking for a future-proof upgrade for your pool? Do you need advice on how to save money or energy? We’d be happy to help. From our pool guide and simple everyday tips to our systems that save you time and money. We’d be happy to send you our latest information pack.

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Public

Our systems are also used in the public sector. We would be happy to send your local authority or organisation further information about our systems. Scalability is key here. From particularly compact units to high-capacity systems, we have exactly the right equipment for you.

Pools

Whether public swimming pools or private pools and swimming ponds, our membrane electrolysis systems are an integral part of your new swimming experience. They ensure the water always contains the correct level of active chlorine, eliminate the smell of chlorine and are easy to use without the need for hazardous chemicals.

Irrigation

Sprinkler systems and automatic irrigation require high performance and high standards. This is precisely where EWT can support you with its technology and expertise.

Water features

Public fountains and parks require a high level of safety and reliability. We offer systems that are perfectly suited to these needs, providing long-term benefits for both the environment and the operators.

Hotel, Spa & Resort

High-quality components and an innovative technical process not only ensure the cost-effective operation of your bathing and therapy facilities. They also guarantee excellent skin compatibility, with no skin irritation or unpleasant odours.

Swimming ponds

Unique aquatic environments place special demands on the technology used. Our product range is ideally suited to a wide variety of projects, particularly those with specific requirements. Our membrane electrolysis systems are designed to meet these specific needs, providing gentle disinfection and a balanced pond environment. We are happy to offer our expertise and look forward to being part of your project.

Greenhouses

First-class water quality and a cost-effective, reliable infrastructure. Whatever the volume of water your greenhouse requires, we will design a water treatment system tailored to your needs, ensuring it is economical and requires minimal maintenance.

How does salt electrolysis work?

The chemical process takes place in our specially designed electrolysis cell. The application of an electric current triggers a reaction in the salt solution, producing free chlorine. The water is purified and disinfected to a hygienically impeccable standard, which kills bacteria, algae and other microorganisms. The system and its capacity are specifically scalable and designed to meet the full range of your requirements.

What types of salt electrolysis systems are there?

Membrane electrolysis: The electrolysis cell is separated by a specially developed membrane. At the anode, chlorine is released and injected into the pool in its purest form. Depending on the type of system, the electrolysis output can be adjusted. From small systems for private users to systems for public facilities, any design is possible.

Tube-cell electrolysis: Tube-cell electrolysis reduces transport distances and the need for expensive pool chemicals by producing the required chlorine on-site from standard table salt. The fresh sodium hypochlorite produced by the system is fed directly into the product tank without the need for an additional pump, from where it can be dispensed as required.

Compact flow-through cells: These systems are often designed for smaller pools or hot tubs and incorporate the electrolysis cell within a compact housing. They are easy to install and take up less space; however, the performance range of such a system is limited and the pool water contains salt.

What is salt electrolysis?

Membrane electrolysis: The electrolysis cell is separated by a specially developed membrane. At the anode, chlorine is released and injected into the pool in its purest form. Depending on the type of system, the electrolysis output can be adjusted. From small systems for private users to systems for public facilities, any design is possible.

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