If an apartment or house is connected to the centralized water supply system with installed water meters, the residents by law are required to calibrate these devices. Hot water meters are verified and calibrated every four years, cold ones — every six years.
To do that, the residents of Kazan turned to the Metrology service call center. The agents entered the metering data into the table, notified the engineers via SMS or WhatsApp, after which, the engineers called back the customers and agreed on the time of the visit. It was taking ages to process each application. Besides, the specialist could not fill out a verification protocol on the spot, and all metering data were kept in written form.