Plumbing · P-ESMWC

Storm Water Sump Pump Detail

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A storm water sump pump basin is set into a concrete floor slab with a gas and water-tight access hatch and frame. The basin houses dual storm water ejector pumps with typical guide bar brackets, spring check valves, and float switches set at specified levels: both pumps off at twelve inches, lead pump on at twenty-four inches, both pumps on at thirty-six inches, and a high water alarm at forty-eight inches within a seventy-two inch total depth. A four-inch storm drain inlet enters the basin through a terminal valve with an invert elevation to be determined, while a three-inch pumped storm discharge pipe and a two-inch vent pipe exit the system. A remote wall-mounted control panel links via wiring by Division 26 for power and Division 22 for pump and float control.

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