2. Technical data specific to the public network

2.1 Drinking water

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2.1.1 Pressure

Drinking water is normally supplied to the delivery point at pressures ranging from 1.5 to 4.5 bar. In principle, the concessionary company ensures a minimum pressure of 22 mCE, i.e. 2.2 bars in the public network pipes. In any case, the minimum pressure required at the entrance to private homes is 1 bar, and in extreme cases 0.7 bar, which confirms the requirement for a water height of 3 m (0.3 bar) above the highest point of the installation (sanitary regulations)....