La Water supply system maintenance is a fundamental element in ensuring the safety and quality of a basic commodity that we consume on a daily basis. We at DKR, active since 1983 in the construction and maintenance of office water dispensers, schools e Horeca sectorwe know that this aspect cannot be neglected. Since 1996 we have been realising Water Houses and we also handle their revamping, as happened with those installed at Expo 2015. This experience has taught us how crucial it is to maintain high maintenance standards to ensure the longevity and efficiency of the systems.
Any dispensing system that provides a filtration treatment, or even just cooling, modifies the characteristics of the drinking water supplied by the water provider. For this reason, it must be subjected to rigorous controls and periodic checks. Water is a foodstuff and its modification must not be dangerous for the user who drinks it. In particular, regulations require that the modification does not worsen the quality of the water for food use.
This is why the control and prevention system for food processing chains was created, whereby the risks in terms of bacteriological pollution, contamination and critical points of each process are thought out and studied. This is why every operator who is in contact with food and foodstuffs and works with them must have done an HACCP course.

The Italian regulatory framework has established precise guidelines for the management of water supply systems. The Legislative Decree 18 of 23 February 2023 represents the main point of reference, classifying installations into different categories based on the level of risk and the environment of use.
The regulations identify the most critical environments and divide them into categories, starting with the most critical:
In terms of categories, the last two are of most interest to us. The first is subject to food jurisdiction, and the treatment process is subject to HACCP (Hazard Analysis and Critical Control Points). In HACCP protocol a natural person or company, who assumes the role of FBO (Food Business Operator), must be indicated as the person responsible for verification and quality.
The second category is subject to the food safety, which in any case provide for checks on the system, maintenance and analyses to verify that the result of the system's operation is protective of the health of those who use it.
When talking about water, you often hear the argument that water is the source of life, or that life originates from water, or that there can be no life on a planet without water. These sentences highlight how important water is for human life, but in detail, they also emphasise that water, if not subjected to adequate treatments, quickly changes, creating bacteria, mould, fungi, and many other life forms.
Tap water counteracts these formations with a careful choice of sources orwhere this is not possible, with purification systems first and bacterial proliferation control later. Chlorine and other antibacterial substances are introduced into the water supply to keeping water safe during transport.
In point-of-use water irrigation systems – whether they are dispensers in businesses or schools, or Water Houses in public squares – filtration organoleptically modifies the qualities of the dispensed water, eliminating tastes, odours and chemical products including chlorine.
The filter, coils and delivery point are in constant contact with water. Water, as we were saying earlier, if not covered with an antibacterial agent, can easily change. Stagnation, heat, and poor hygiene can facilitate the spread and proliferation of bacteria.
La maintenance, regularly by qualified personnel, ensures that a favourable environment for bacteria is not created. The pipes, taps and fittings are cleaned with special material that is inserted into the system and left in contact for the necessary time.
Filters must also be replaced, which can become saturated if they are not changed. A saturated filter no longer does its job, but rather becomes a source of bacterial proliferation.
Particular attention must be paid to the ultraviolet lamp, which in a system performs the function of a bactericide. To function correctly, it must ensure adequate contact between the water and the UV rays it produces and emits. For this reason, it must be cleaned at least every 6 months and replaced once a year.
To verify that everything has been done correctly, it is good practice to take a sample and have it analysed bacteriologically by an authorised laboratory, which will certify the quality of the work.
In working environments without food production, we recommend:
Le bacteriological analyses are compulsory in all cases. This is not only to comply with regulations, but above all to ensure the safety of those who use our facilities.
We hope that with these few lines it has been understood that behind a dispenser that provides pleasant, safe and fresh water, there is attention to every detail, years of experience and work, many problems solved which have produced experience available to the end customer.
Our 40 years in the industry have taught us that The world of water is complex and requires specific expertise.. When you are offered an installation, as well as seeing if you like it and if it fits well in your environment, pay particular attention to the quality of the company you are dealing with.
At DKR, we provide our customers not only with high-quality installations, but with a comprehensive service that includes:
Each intervention is documented and trackedproviding our customers with the peace of mind of always having
monitor the status of their plant. Our experience in revamping the Expo 2015 Water Houses has allowed us to further refine our skills in managing complex, high-usage plants.
Our long experience in the industry allows us to:
Contact us today for a free maintenance consultation on your water supply system. Our technicians are at your disposal to assess your specific needs and propose a customised maintenance plan. The health of your employees and customers deserves only the best.