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Zoeller 73-0001 submersible sump pump, cast iron and plastic body, vertical float switch, 1/3 HP 115V

Zoeller

Zoeller 73-0001 submersible sump pump 1/3 HP 115V vertical float

SKU CH-PNDX-38WD8

Submersible sump pump with a vertical float switch, delivering 38 gpm at 5 ft head and a maximum head of 18 ft

  • 1/3 HP motor delivers 38 gpm at 5 ft head
  • Vertical float switch activates at 6 1/2 in and shuts off at 2 1/2 in
  • Cast iron and plastic body resists corrosion in wet environments
  • 115V single-phase power suits standard household circuits
  • Maximum head of 18 ft handles typical basement drainage needs

1/3 HP submersible sump pump

The Zoeller 73-0001 is a submersible sump pump rated at 1/3 horsepower for 115 V AC single-phase power at 60 Hz. It draws 5.50 A and uses a vertical float switch with integral electrical connection. The pump body is cast iron and plastic with a plastic impeller and carbon-ceramic shaft seal. It fits sump pits of at least 12 in diameter and has a body diameter of 8 3/32 in.

Vertical float switch actuation

The integral vertical float switch turns the pump on at 6 1/2 in and off at 2 1/2 in of water level. This automatic actuation removes the need for a separate control box or external wiring for the switch. The design suits installations where a tethered float would lack clearance. Buyers who need adjustable on/off levels or a piggy-back plug for manual override cannot change the fixed actuation points on this unit.

Flow rates up to 18 ft head

At 5 ft of head the pump delivers 38 gpm, falling to 30 gpm at 10 ft and 14 gpm at 15 ft. Maximum shut-off head is 18 ft, beyond which flow stops. These figures cover typical residential basement and crawl-space dewatering. Installations requiring higher lift or sustained flow above 38 gpm will exceed the pump's capacity.

Highlights

  • 1/3 HP motor delivers 38 gpm at 5 ft head
  • Vertical float switch activates at 6 1/2 in and shuts off at 2 1/2 in
  • Cast iron and plastic body resists corrosion in wet environments
  • 115V single-phase power suits standard household circuits
  • Maximum head of 18 ft handles typical basement drainage needs

Specifications

BrandZOELLER

Questions about this item

How often should the carbon-ceramic shaft seal be inspected on this Zoeller 73-0001 pump?

The carbon-ceramic shaft seal is a wear component; plan to check it annually and replace if leakage appears around the motor housing.

At what head height does the flow rate fall to 14 gpm on this 1/3 HP pump?

At 15 ft of head the flow rate is 14 gpm, which is close to the 18 ft maximum head where flow stops.

What is the motor amperage during continuous operation of this 115V sump pump?

The motor draws 5.50 A at 115V AC, 60 Hz; expect warm cast-iron housing and typical submersible pump hum during extended runs.

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