For a better understanding of the topic, let's consider the sample of a technical water treatment system for a private home. Water preparation is carried out in several stages:Mechanical cleaning filter - removes sand and rust from water.Complex cleaning filter with filter material - reduces the level of water hardness and removes scale from household appliances.Complex cleaning filters can be column or cabin type. Column type is a separate shell with ion exchange resin and a separate container with saline solution (for cleaning ion exchange resin). And in cabin-type filters, these two elements are assembled together, so they are more compact. Accordingly, cabin filters are designed to purify water in small apartments. It is recommended to use a special flask with a carbon filter additionally to eliminate the unpleasant smell of water from hydrogen sulfide.It is important to note that the regeneration process depends on the quality of the source water. Accordingly, the higher the level of water hardness, the shorter the filtration cycle (i.e. the less water can be filtered with one installation).With integrated cleaning filters, it is also recommended to use cartridges for mechanical cleaning of the source material.Ultraviolet UV disinfectants destroy viruses, microbes and fungi contained in water.These three stages cope with the purification of water from large particles of impurities, so they are designed only for the purification of industrial water (to extend the life of plumbing and household appliances). This water is not suitable for drinking. In order to prepare drinking water for consumption, you need to install reverse osmosis.