At buildings in which the building drain is
too low to permit gravity flow to the public sewer, sanitary sewage
carried by such drain shall be lifted by artificial means commonly
known as a "grinder pump," with said artificial means being approved
by the City, and discharged to the public sewer. The use of any pumping
equipment for which cross-connections with a public water supply system
are needed is prohibited. The total costs of pumping equipment and
pumping equipment operational costs shall be those of the owner. The
owner shall be responsible for all maintenance of the grinder pump
and sewer line all the way to where the sewer line taps into the City
sewage system.