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Dayton 4HU79 submersible sewage pump in cast iron housing

Dayton

Dayton 4HU79 4/10 HP 2 in. Manual Submersible Sewage Pump 120V

SKU CH-99VT-FVV3A MPN 4HU79

Manual submersible sewage pump handles 2-inch solids and delivers up to 95 gallons per minute at 10 feet of head

  • TypeDrain Components
  • Handles 2 in. solids with 4/10 HP motor
  • 95 gpm at 10 ft head for strong flow
  • Cast iron body and impeller resist wear
  • Hermetically sealed oil-filled motor protects windings
  • Carbon ceramic shaft seal reduces leak risk

Suitable applications for a 4/10 HP sewage pump

This 4/10 horsepower submersible pump handles raw sewage with solids up to two inches in diameter. It is designed for residential or light-commercial ejector basins where a manual, non-automatic unit is preferred. The hermetically sealed, oil-filled motor runs on 120 V AC single-phase power and draws 12.00 amps.

Installation notes and common issues

The pump body and impeller are cast iron, with a carbon-ceramic shaft seal for durability in abrasive waste. No float switch or control switch is included, so a separate level control must be wired in. Because the motor is oil-filled, the unit must remain submerged during operation to prevent overheating.

Checks before ordering

Verify that the basin provides enough liquid depth to keep the motor covered at all times. Confirm the electrical supply can deliver 120 V at 12.00 amps on a dedicated circuit. Ensure the discharge piping can accommodate the two-inch solids passage and the rated flow rates of 95 gpm at 10 ft head, 70 gpm at 15 ft head, and 37 gpm at 20 ft head.

Highlights

  • Handles 2 in. solids with 4/10 HP motor
  • 95 gpm at 10 ft head for strong flow
  • Cast iron body and impeller resist wear
  • Hermetically sealed oil-filled motor protects windings
  • Carbon ceramic shaft seal reduces leak risk

Specifications

TypeDrain Components
BrandDayton
Model4HU79

Questions about this item

How do I confirm the 4HU79 pump is working correctly after installation?

Check the flow rates: 95 gpm at 10 ft head, 70 gpm at 15 ft head, and 37 gpm at 20 ft head. The hermetically sealed motor should run without leaks.

What comes with the 4HU79 and what must I purchase separately?

The pump includes a cast iron body, cast iron impeller, carbon ceramic shaft seal, and 120V hermetically sealed motor. No switch is included; buy a separate float or pressure switch.

Which version of the Dayton 4HU79 should I choose for my application?

This model is a 4/10 HP, 120V manual submersible sewage pump with 2 in. solids handling. Select it when you need those exact specifications.

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