We call pure water cleaning a system allowing the cleaning of glass surfaces, solar panels, cladding, etc. which uses pure water.
Pure water is water in its purest form. The minerals are filtered during a physical process, in order to avoid any traces of limestone on the treated surfaces.
This has all the more impact on a glass surface or it is the recurring problem of window cleaning.
Minerals are called TDS (Total Dissolved Solids) and are measured in ppm (parts per million).
Water is considered pure and 100% demineralised when the TDS value is at p ppm.

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