An unambiguous answer, as often happens, is impossible to give. The fact is that tap water is different in different regions of Russia (even in Moscow it is different). In 2017,
particularly noted the quality of tap water in the following regions:
In 2017, more than 50% of drinking water supply samples did not meet hygienic standards for sanitary and chemical indicators in the Republic of Kalmykia (71.4%), Dagestan (67.1% ), Mordovia (66.7%) and Novgorod region (51.7%); by microbiological indicators - in the Republic of Ingushetia (hygiene standards are exceeded in 15.
2% of samples), the Karachay-Cherkess Republic (14.9%), the Nenets Autonomous Okrug (14.3%) and the Smolensk Region (13.9%).
But even if you live in one of the “lucky regions”, do not rush to refuse filters and drink tap water.
Yes, a local water utility can produce ideal water, but then this water is sent through pipes, which are most likely far from ideal. This is especially true of a dilapidated house with old water supply networks (deterioration of water supply networks in Moscow in 2012 was 68% 68).
Important: the water utility is responsible for the water that enters the distribution network, and the utilities are already responsible for the pipes. At the same time, it will not work to determine the quality of water at home - laboratory tests will be needed (this is necessary in order to choose the right filter). To do this, you need to submit an application for analysis to the sanitary epidemiological station, the housing and communal services service or the Rospotrebnadzor.
You can contact an independent laboratory. The analysis is paid, it costs from 1,000 to 3,500 rubles.
Since l laboratory studies are different, first you need to study what deviations in water quality are typical for your region, and select the analysis in which the desired indicator is examined. Look for information about your city HERE . After analysis, you will have all the necessary data to correctly select the filter.
In addition, until you get the result of the research, do not forget about another good option: boiling. With it, you will get rid of bacteria, viruses and protozoa.
This article deals only with cold tap water.
tap water is not recommended to drink or use in cooking.