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Part #: BW4000
877-WAYFAIR (877-929-3247)|SKU #: BSW1004

Basement Watchdog Big Combination Sump Pump System


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List Price:  $499.00

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Arrives for Christmas to Seattle, WA 02108 (Change)


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  • Pump system
  • Package contains: Controller, charger, two dual micro reed float switches, primary pump and backup pump, instruction manual (battery and acid sold separately)
  • Offers two combination sump pump systems designed to provide both primary and battery backup pump capabilities
  • Primary pump will operate as long as it is receiving AC power
  • Power is interrupted, or if more water is coming into the sump than the AC pump can handle, the backup sump pump will begin pumping automatically
  • Backup system has unique monitoring features that diagnose a problem and sound an alarm
  • Light on the display panel of the control unit will indicate the cause of the alarm and the corrective action
  • Two systems have been pre-assembled for easy installation
  • Compact, fits in pits as small as 12'' in diameter
  • Dual float switches for added protection
  • Primary float switch has a protective cage
  • Primary system pumping capacity: 4400 GPH @ 0' or 3200 GPH @ 10'
  • User-friendly controller sounds an alarm, illuminates a warning light and describes what to do for easy maintenance
  • Ability to communicate with an auto dialer, home security system or other device to alert you to problems or required maintenance
  • System runs the backup pump once per week to ensure proper operation
  • Power supply requirements: 115 volts AC
  • 2-Year warranty
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  • Overall Height - Top to Bottom: 18 Inches
  • Overall Width - Side to Side: 11 Inches
  • Overall Depth - Front to Back: 8.75 Inches
  • Overall Product Weight: 18.2 Pounds

Additional Documents

Installation and Assembly

Weights & Dimensions

  • Overall Height - Top to Bottom: 18 Inches
  • Overall Width - Side to Side: 11 Inches
  • Overall Depth - Front to Back: 8.75 Inches
  • Cord Length: 120 Inches
  • Inlet Diameter: 1.5 Inches
  • Outlet Diameter: 1.5 Inches
  • Overall Product Weight: 18.2 Pounds


Control Box Included: YesBattery Included: No
Product Warranty: 2 YearsProduct Type: Sump Pump
Overheat Shutdown: YesFinish: Grey
Battery Charger Included: YesUL Listed: Yes
Hardware Finish: Stainless SteelcUL Listed: Yes
Material: Aluminum; Cast ironHardware Material: Stainless steel
Material Casing: Cast iron; AluminumMaterial Shaft: Stainless steel
Impeller Materials: PolymerNumber of Items Included: 11
Pieces Included: Primary and battery backup pump, primary and battery backup controller/monitor, backup charger, primary dual float switch with protective cage, backup dual float switch, battery box, battery cap with hole, wire ties, instruction manualCorrosion Resistant: Yes
Leakproof: YesRust Resistant: Yes
Control Box Required: YesHose Included: No
Castors Included: NoUsage: Basement
Power Source: Electric; BatteryAmperage: 4.2 Amps
Frequency: 60 HertzVoltage: 115 Volts (V)
Flow Rate: 4400 Gallons per Minute (GPM)Shredder Impeller: No
Submersible: YesMax Head Height: 25 Feet
Switch Type: Reed switchMaximum Fluid Temperature: 104 Fahrenheit
Auto Shut Off: YesSuction Strainer Included: Yes
Threaded Inlet: YesThreaded Outlet: Yes
Battery Operated: YesPermanent Lubrication: Yes
Power Cord: YesHandles: Yes
Commercial Use: NoCountry of Manufacture: China
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When you buy a Basement Watchdog Big Combination Sump Pump System online from Wayfair, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Basement Watchdog Part #: BW4000 here. If you have any questions about your purchase or any other Water Pumps product for sale our customer service representatives are available to help.Whether you just want to buy a Basement Watchdog Big Combination Sump Pump System or shop for your entire home, Wayfair has a zillion things home.

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