The reports by multiple transregional newspapers from Hamburg, Berlin, Augsburg and Munich in November 2014 about the infection of brand-new water-meters with pseudomonia bacteria were not the first reports to make us aware that the bacterial contamination of our potable water and the “disinfection of drinking-water installations for the removal of bacterial contamination” are highly important issues.

The Section 4 of German Drinking Water Act requires that “drinking water must be provided so that does not cause any fear that damage to human health through its consumption and enjoyment (especially from pathogenic germs).”

Household water meters are exchanged every six years. Prior to their delivery, the water meter manufacturers test all water-meters with calibration water on a test-bench and a small amount remains within the body and on the lid. Most water-meters are then stored for weeks or months as inventory by installation companies. This leads to microbiological contamination.

For that reason, water-meters should be disinfected shortly before installation by water utilities and/or their installation companies, in order to prevent the infiltration of pseudomonia bacterial into the drinking water system. The water-meters should be disinfected on a daily basis. This is why MainTech Systems together with Mösslein Wassertechnik has developed three version of our water-meter disinfection system.

  • For 2 units, the Qn 2.5 water-meter
  • For 8 units, the Qn 2.5 water-meter
  • For 2 units, the Qn 6 water-meter

Within a few minutes with just a few actions, the water-meters will be flushed and cleaned by a disinfection solution. After cleaning and packing, they will be ready for the transport to the installation site of installation. Pseudomonia bacteria do not have any chance anymore.

Water meter disinfection