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The ZOELLER ZOEL-10-1964 is a double piggyback variable level float switch rated for 115 volts, 15 amps, and 1 horsepower. It is designed to control sump pumps and effluent pumps by sensing water level and automatically cycling the pump on and off. The double piggyback design allows the switch to plug directly into the pump's power cord while simultaneously connecting to a wall outlet, simplifying installation without requiring separate wiring. A 15-foot cord provides reach in standard pit or basin applications. Licensed plumbers and pump service technicians are the primary installers of this accessory.
This float switch is suited for residential and light commercial sump, sewage, and effluent pump installations where automatic level control is required. The variable level adjustment allows the technician to set the activation and deactivation points to match the specific pit depth and desired pump cycling range. It is commonly installed in basement sump pits, crawl space drainage systems, and effluent basins where reliable automatic operation is critical.
Designed as an OEM-style accessory float switch for use with 115-volt residential sump, effluent, and sewage pumps requiring automatic level control via a piggyback plug connection.
Installation should be performed by a licensed plumber or qualified pump technician. Always disconnect power at the circuit breaker before servicing the pump or switch assembly. Secure the float switch cord to the discharge pipe or basin wall to maintain the desired activation depth and prevent the float from tangling with the pump. Verify that the circuit is rated for the switch load before restoring power.
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