US
BASEMENT WATCHDOG

Basement Watchdog Big Dog Battery Backup Sump Pump

  • 3,500 GPH flow rate, per the title
  • 10 foot maximum lifting height
  • Battery backup sump pump system
  • Copper-wound motor
  • WiFi capable with add-on module
  • 2 year warranty

Last refreshed Sep 28, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A battery backup sump pump system with a copper-wound motor and optional WiFi monitoring through an add-on. The flow unit differs between the title and the spec field.

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ASIN: B000KXZO6MCategory: Sump Pumps

Overview

A copper-wound motor drives this sump pump, and the system adds a battery backup so water continues moving during a power outage. WiFi connection needs the separate add-on module.

A backup system and optional connectivity suit a basement where flooding is a concern. The flow rate reads gallons per hour in the title and gallons per minute in the specs, so the unit needs confirming.

Who it's for

A homeowner protecting a basement from flooding, who wants backup power and the option to monitor remotely, will find the system matched. Buyers who need WiFi included, or confirmed flow data, should check the maker.

Pros and cons

Pros
  • Battery backup included
  • WiFi capable with add-on
  • Ten foot lift
  • Two year warranty
Cons
  • WiFi needs the add-on module
  • Flow unit stated two ways
  • Battery type not stated

Performance notes

A sump pump lifts water out of a pit, and the flow rate falls as the lift height rises, so the listed flow applies to a particular lift. A backup battery supplies the pump when mains power fails, and the copper-wound motor is the part that does the pumping.

Specifications

BrandBASEMENT WATCHDOG
Dimensions & fit
Maximum Lifting Height10 feetlower than 89% of 20 sump pumps
Item Dimensions L X W X H5 in L x 9 in W x 7.63 in H
Item weight5 pounds
Capacity & performance
Flow Rate3,500 GPH (title); 3500 gpm (spec field)
Power & efficiency
Horsepower1 hp
Power SourceBattery backup system
Voltage100 volts (listed)lower than 87% of 24 sump pumps
Construction & materials
Material TypePlastic
ColorBlack
Compatibility & installation
ConnectivityWiFi capable with add-on module
Included components
Included ComponentsBWD-12-120C
Unit Count1 Count
Warranty & support
Manufacturer Warranty Description2 year
Other details
Product StyleSump Pump

Closest rivals on specs

WAYNE EEAUP250 Submersible Multi-Use Pump 1/4 HP
  • Maximum Lifting Height 10 vs 13 feet (-23%)
WAYNE CDU800 Submersible Sump Pump 1/2 HP
  • Maximum Lifting Height 10 vs 20 feet (-50%)
Zoeller M53 Mighty-mate Submersible Sump Pump 1/3 HP
  • Maximum Lifting Height 10 vs 19.25 feet (-48%)
  • Horsepower 1 vs 0.33 hp (+203%)
  • Voltage 100 vs 115 volts (-13%)
Compare all side by side

Frequently asked questions

Does the Big Dog CONNECT include WiFi?

It is WiFi capable, but the title says it needs an add-on module.

How high can it pump?

The listing gives a maximum lifting height of 10 feet.

What is the flow rate?

The title says 3,500 GPH, while the spec field says 3500 gpm. Confirm the unit with the seller.