Flush drinking water systems
From April 27, 2020, the first facilities such as medical practices, hairdressing, massage and beauty salons will be able to resume operations. Later, sports facilities, school buildings and other institutions will follow. In most cases, their drinking water installations have hardly been used for several weeks, which promotes the formation of microorganisms such as Legionella, which can cause severe pneumonia (Legionnaires' disease). For this reason, it is imperative that drinking water installations are flushed before they are put into operation.
The measures adopted by the Federal Council in connection with the outbreak of coronavirus will be from 27 April 2020 gradually loosened again.
Drinking water installations of publicly accessible buildings and facilities must be thoroughly flushed before this date, or before commissioning. This means that all water points where water is tapped must be opened and flushed. This includes, for example, water taps, shower heads, water connections, etc.
It is important to open several tapping points at the same time. This ensures a sufficiently strong flow in the pipes. The process should run at least until the temperature of the flowing water remains constant. Flushing must be done separately for the cold and hot water. This simple and effective measure serves to protect the health of the users.
The Swiss Gas and Water Association (SVGW) has published a Specialized information created.
Source: Federal Food Safety and Veterinary Office (FSVO)
More link tips:
Legionella and legionellosis - BAG/BLV recommendations
Obligations for owners, operators and tenants
