Patent ID: 7302958

Claim:
A method for operating tank farm system having a fixed piped interconnection with a piping system for liquids wherein: the tank farm system comprises one or more tanks in fluidic communication with the piping system, one or more liquids are fed from at least two pipe lines of the piping system into the one or more tanks one or more liquids are discharged from the one or more tanks into at least one pipe line of the piping system the one or more liquids are both discharged from and fed to the the one or more tanks through an aperture located at the bottom of the one or more tanks, the liquids being fed or discharged flow through a hollow body in fluidic communication with a tank and which is positioned below the aperture at the bottom of the tank, and any liquid in said hollow body is optionally and switchably separable in a mix-proof manner from any of the pipe lines of said piping system.