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Dayton 3BB77 submersible sump pump cast iron body tether float switch

Dayton

Dayton 3BB77 1/2 HP Submersible Sump Pump 120V AC Tether Float

SKU CH-VHYD-G50V5 MPN 3BB77

Half-horsepower cast-iron submersible sump pump with tether-float switch delivers up to 80 gpm at 5 ft head and 32 ft max head

  • TypeDrain Components
  • Moves up to 80 gallons per minute at 5 ft head
  • Delivers 70 gpm at 10 ft and 62 gpm at 15 ft head
  • Pumps 50 gpm at 20 ft with a 32 ft maximum lift
  • Cast iron body and impeller with carbon ceramic shaft seal for durability
  • Tether float piggyback switch provides automatic on/off operation

1/2 HP Submersible Sump Pump

The Dayton 3BB77 is a 1/2 HP submersible sump pump designed for residential drainage. It operates on 120V AC power and uses a tether float switch for automatic operation. Cast iron construction provides durability for continuous water removal tasks.

Check Voltage And Discharge Size

Verify your electrical supply delivers 120V AC at 60 Hz and can handle a 9.8 A draw. The pump requires a 1-1/2 inch discharge connection compatible with your existing piping. Ensure the tether float has adequate clearance to move freely within your sump basin.

Upgrades From Lower Capacity Units

This pump replaces units with lower head or flow performance when drainage demands increase. The jump is worth it if you need up to 80 gpm at 5 ft head or a maximum 32 ft shut-off head. It is not for installations requiring higher voltage or larger discharge diameters.

Highlights

  • Moves up to 80 gallons per minute at 5 ft head
  • Delivers 70 gpm at 10 ft and 62 gpm at 15 ft head
  • Pumps 50 gpm at 20 ft with a 32 ft maximum lift
  • Cast iron body and impeller with carbon ceramic shaft seal for durability
  • Tether float piggyback switch provides automatic on/off operation

Specifications

TypeDrain Components
BrandDayton
Model3BB77

Questions about this item

What comes with the Dayton 3BB77 and what must I buy separately?

The pump includes a tether-float switch with piggyback electrical connection and a 1-1/2" discharge outlet; you will need to supply a discharge hose or pipe, a check valve and a grounded 120 V AC outlet on a 15 A or 20 A circuit.

Should I choose a different horsepower or voltage version of this pump?

This model is only offered as a 1/2 HP, 120 V AC unit with a tether-float switch; no other horsepower or voltage options exist for the 3BB77.

What does the 80 gpm at 5 ft head rating mean when the pump is installed in my basement?

At a 5 ft lift the pump moves about 80 gallons per minute; flow drops to 70 gpm at 10 ft, 62 gpm at 15 ft and 50 gpm at 20 ft, with a maximum shut-off head of 32 ft.

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