The normal water pressure ranges vary by country. The normal pressure ranges for different countries are set by the plumbing organizations in those countries. High Base Pressure alerts are sent when the average pressure value during the last 24 hours is higher than the maximum value of the normal pressure range, i.e. higher than 80 PSI for USA/Canada. The pressure ranges for different countries are listed in the table below:

Country Minimum pressure (psi) Maximum pressure (psi)
USA / Canada 40 80
Sweden 30 105
Spain 30 80
Italy 40 60
Germany 35 80
France 30 80
Finland 40 105