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Dayton

Dayton 3YU74 1/3 HP Submersible Sump Pump 115V AC Tether Float Switch

SKU CH-0YK4-KMWMA MPN 3YU74

Removes water from sump pits using a 1/3 HP motor with tether float activation and stainless steel construction

  • TypeDrain Components
  • 1/3 HP motor handles demanding drainage tasks
  • 16 gpm at 5 ft head clears water quickly
  • Tether float switch automates pump operation
  • Stainless steel body and impeller resist corrosion
  • 115 V AC power suits standard household circuits

Submersible Sump Pump for Residential Drainage

The Dayton 3YU74 is a submersible sump pump rated at one-third horsepower and 115 volts AC. It is designed to remove water from sump pits in basements or crawl spaces. The unit uses a tether float switch for automatic operation and has a 1-1/4 inch discharge connection. It suits homeowners needing reliable water removal.

Installation Requirements and Common Issues

The pump requires a sump pit with a minimum diameter of 12 inches and operates on a standard 60 Hz electrical supply drawing 2.8 amps. The tether float switch needs adequate clearance to move freely without obstruction. A piggyback plug allows the switch to control power directly. Debris in the pit can impede the float or clog the stainless steel impeller.

Sustained Operation and Flow Performance

Flow rates decrease as discharge head increases, delivering 16 gallons per minute at 5 feet of head and 8 gallons per minute at 10 feet. At 15 feet of head the flow drops to 1 gallon per minute, and the maximum shut-off head is 16 feet. The stainless steel body and Buna-N shaft seal are built for continuous submersion during extended pumping cycles.

Highlights

  • 1/3 HP motor handles demanding drainage tasks
  • 16 gpm at 5 ft head clears water quickly
  • Tether float switch automates pump operation
  • Stainless steel body and impeller resist corrosion
  • 115 V AC power suits standard household circuits

Specifications

TypeDrain Components
BrandDayton
Model3YU74

Questions about this item

How do I confirm the pump is operating correctly after installation?

Verify the pump activates when water reaches the 14 in on-point and shuts off at the 7 45/64 in off-point; check flow rates of 16 gpm at 5 ft head and 8 gpm at 10 ft head.

What components are included and what must be purchased separately?

The pump includes a tether float switch with piggyback electrical connection; discharge piping, check valve, and 12 in minimum diameter sump pit are not included.

Which version suits my sump pit and head requirements?

Choose this 1/3 HP, 115V AC model with 1-1/4 in discharge for pits at least 12 in wide and maximum head of 16 ft; flow drops to 1 gpm at 15 ft head.

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