Refer to NFPA 14, residual pressure at hydrant should be 7 bar for fire fighting.
However, the concept was changed. A fire truck will be provided for the fire fighting.
I have concerned about the pressure at the hydrant.
The pressure should be lower than 7 bar because fire pump in the fire truck will be used in case of fire.
Hydrant will be used only for water flow.
What is minimum pressure at hydrant will be related with fire truck?