Combo Pumps

Combo Pumps 101

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Accolades

“The item was easy to set up and install. It took me about an hour for the whole project and now my home has a reliable battery backup sump pump. The pump runs very quiet too. There is no loud thump from the check valves.”

Xavier, Ace Purchaser

The Basement Watchdog Big Combo CONNECT (CITS-50) Primary and Battery Backup Sump Pump System

"This Basement Watchdog dual sump pump is an easy DIY installation...Once installed properly, the system requires little attention. [The controller from] each of the pumps has its own distinctive sound which will alert you to a possible issue."

Bill, Lowes Purchaser

The Basement Watchdog Combo (CITE-33) Primary and Backup Sump Pump System

Combo Pumps 101

Not All Combination Pumps Are Created Equal

The information in this section answers some key questions about combination sump pump systems. Have more questions? We have more answers in our Frequently Asked Questions section.

  • What is a combination system?

    A combination system gives you two in one—an AC sump pump and a battery backup sump pump—in a preassembled, compact package that is simple and quick to install.

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  • What are reasons to install a combo system?
    • You want to add a backup pump for extra protection and replace your old AC pump before it fails 
    • Your primary pump just quit on you and your basement took on a bit of water; a combo would allow you to add a backup pump to a new primary and easily double your protection 
    • Your pit is small and wouldn’t allow you to install primary and backup pumps side by side 
    • You’re not a plumber and are looking for an easy, DIY option
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  • What are the benefits of a combo system?
    • Preassembled for easy installation
    • Compact design fits into pits with diameters as small as 12 inches
    • AC-powered primary pump operates as long as power is on
    • Battery-powered backup pump will take over during a power outage
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  • Will the backup pump in your combo system automatically begin pumping?

    Yes, if/when water reaches the battery backup pump‘s Dual Float Switch, because:

    • power is interrupted so the AC pump can’t run
    • the AC pump fails
    • the AC pump’s float has an issue and it doesn’t turn on the pump
    • more water is coming into the sump pit than the primary pump can handle
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  • What purpose does the backup pump controller serve on your combo system?

    This user-friendly controller:

    • Sounds an alarm
    • Illuminates a warning light
    • Describes what to do for easy maintenance

    The Basement Watchdog Special CONNECT (BWSP) controller has lights and alarms and monitors pump, power and battery conditions 24/7The controller for The Basement Watchdog Emergency (Model BWE) now features an external fuse to make replacing the fuse simple.

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  • What features does the primary pump in a Basement Watchdog combo have?
    • High-capacity Permanent Split Capacitor (PSC) motor 
    • Durable, cast-iron construction 
    • Upper and lower ball bearings for a smooth, energy-efficient, long life 
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  • What is the benefit of having Dual Float Switches in a combo system?
    • 4 floats for added redundancy, with a Dual Float Switch on both the primary and backup pump in a combo system
    • Protective cage for the primary pump prevents debris or wires from interfering with the float’s movement so it won’t get hung up

    The Basement Watchdog caged dual float and uncaged dual float provides 4 times the protection

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