Review on Mi TDS Pen Water Quality Tester by Felicja Kula ᠌

The simplest test of any water for its degree of purity is the presence of sediment (scale) in an electric kettle after boiling. Water "Holy source" has the same impurity index (according to the device) as purified water from the filter "Barrier" with the most sophisticated cartridge. At the same time, the "Barrier" leaves scale, but the Holy Spring does not. At this point, it is not at all clear how the device works and how much it can be trusted In other cases, he only confirmed the internal sensations by the degree of cleanliness and converted them into a digital indicator, which became the basis for ordering all the coolers to the service office and cleaning them. It is not enough to change the water in the coolers, they also need to be serviced and washed from the inside.