10 Best Backup Sump Pumps 2024

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

Wayne WSS30VN Upgraded Combination 1/2 HP and 12-Volt Battery Back – ⭐ Best Overall Backup Sump Pump

WSS30VN by Wayne

  • Dimensions: 23.5 x 18.3 x 14 inches
  • Warranty: 3 year manufacturer
Wayne WSS30VN Upgraded Combination 1/2 HP and 12-Volt Battery Back
  • New and upgraded WAYNE WSS30V. Completely pre-assembled and drop in ready.
  • Primary pump float switch tested to 1 million cycles, up to 10X more than competitors.*
  • Assembled in the US with foreign and domestic parts
  • Protection when you need it, back up pump continues running when the power is out. For Use In 16 inch. Diameter or Larger Sump Basins
  • Primary pump moves up to 5100 GPH at 0 feet of head.
  • 12V DC back up pump moves up to 2900 GPH at 0 feet of head, one of the highest performing DC pumps on the market
  • Ultra-Quiet performance; 8 ft. SJTW Power Cord

THE BASEMENT WATCHDOG Model BWE 2

BWE by THE BASEMENT WATCHDOG

  • Color: Black
  • Weight: 9 pounds
  • Dimensions: 4.5 x 8.5 x 6.5 inches
  • Warranty: 2 year
THE BASEMENT WATCHDOG Model BWE 2
  • Pumps 2,000 GPH at 0 ft. lift and 1,000 GPH at 10 ft. lift
  • User-friendly controller monitors battery, pump and power conditions 24 hours a day
  • Provides days of intermittent pumping power on a single battery charge
  • Compatible with both wet cell and maintenance-free AGM batteries

Liberty Pumps SJ10 SumpJet Water Powered Back-Up Pump

SJ10 by Liberty Pumps

  • Color: Gray
  • Weight: 5 pounds
  • Dimensions: 14.5 x 5.1 x 21.6 inches
  • Warranty: Liberty Pumps, Inc. warrants that pumps and other products of its manufacture are free from all factory defects in material and workmanship for a period of 2 years from the date of purchase.
Liberty Pumps SJ10 SumpJet Water Powered Back-Up Pump
  • Made In America
  • MECHANICAL COMPONENTS
  • Commercial Brand: Liberty
  • Package Dimensions: 18. 0" L x 18. 0" W x 21. 0" H

Superior Pump 92900 12V Battery Back Up Submersible Sump Pump – 💲 Best Budget Backup Sump Pump

92900 by Superior Pump

  • Color: 92900
  • Weight: 12.5 pounds
  • Dimensions: 13 x 10 x 16.5 inches
  • Warranty: 1 Year Limited Warranty
Superior Pump 92900 12V Battery Back Up Submersible Sump Pump
  • 12 Volt Sump pump moves up to 1,380 gallons per hour, pump will lift water up to 25' of vertical height
  • Tough thermoplastic construction; 10-foot cord length
  • Tethered float switch to automatically turn the pump on/off
  • 1-1/4 inch or 1-1/2 inch NPT discharge for high capacity pumping
  • Superior Pumps are Built to Last, engineered with quality components and are 100% factory tested

THE BASEMENT WATCHDOG Model BWSP 2

BWSP by THE BASEMENT WATCHDOG

  • Weight: 12 pounds
  • Dimensions: 5 x 9 x 7.6 inches
  • Warranty: 2 year
THE BASEMENT WATCHDOG Model BWSP 2
  • Pumps 2,500 GPH at 0 ft. of lift and 1,730 GPH at 10 ft. of lift
  • User-friendly control panel lights up with a warning and describes what to do for easy maintenance
  • A sensor monitors battery fluid levels for increased piece of mind
  • Includes controller, charger, dual float switch, pump and battery box (battery sold separately)
  • Compact pump can be installed even in small or narrow sump pits

Pump Sentry 822 PS- Emergency Power for Sump Pumps by – 👑 Premium Pick

822 PS by SEC America

Pump Sentry 822 PS- Emergency Power for Sump Pumps by
  • 1200 Watt Battery Back Up System, UL & CSA Approved
  • Battery Cables Included, Rugged Aluminum Housing Compact Size
  • For Wall Mount or Surface Mount Installation
  • You will need to purchase (separately) a 12 volt deep cycle marine battery up to 200 amps
  • 2 Year Factory Warranty

WAYNE ESP15 Battery Back-Up 12 Volt Sump Pump System

57609-WYN1 by Wayne

  • Color: Black
  • Weight: 8.5 pounds
  • Dimensions: 17 x 11 x 13 inches
  • Warranty: 1 Year - Parts Only
WAYNE ESP15 Battery Back-Up 12 Volt Sump Pump System
  • 720-Gallons per hour at 10-feet of lift and maximum flow is 1750 gallons per hour
  • Corrosion resistant thermoplastic construction
  • Alarm sounds to notify you when the backup system is active
  • Requires one 40-ampere hour or one 75-ampere hour battery
  • 1-Year limited warranty

Zoeller 508-0006 Aquanot 508 ProPak53 Preassembled Sump Pump System with

508-0006 by Zoeller

  • Color: Green
  • Weight: 17 pounds
  • Dimensions: 8.5 x 8.5 x 10.5 inches
  • Warranty: 3-year limited warranty
Zoeller 508-0006 Aquanot 508 ProPak53 Preassembled Sump Pump System with
  • Includes: Model 53 115-volt pump, Model 508 Aqua not, 115 Volt DC backup system with pump, check valve, float switch and piping
  • Plumbed in 1-1/2" Such 40 PVC pipe
  • Comes fully assembled and ready to install in your clear water sump
  • Extra protection when the primary AC pump fails due to power outages
  • Fully solid state automatic 10A charger/controller with alarm, light indicator and warning system

Zoeller 540-0005 FLEX Series Water-Powered Back-Up Sump Pump

540-0005 by Zoeller

Zoeller 540-0005 FLEX Series Water-Powered Back-Up Sump Pump
  • Back-Up Sump Pump

THE BASEMENT WATCHDOG Big Combo CONNECT Model CITS-50 1/2 HP

CITS-50 by THE BASEMENT WATCHDOG

  • Weight: 31 pounds
  • Dimensions: 8.8 x 11.8 x 18 inches
THE BASEMENT WATCHDOG Big Combo CONNECT Model CITS-50 1/2 HP
  • 1/2 HP energy efficient permanent split capacitor (PSC) primary pump can save money on your electric bills
  • Primary pump capacity 3,540 GPH at a 10 Ft. lift and 4,400 GPH at 0 Ft. lift. Backup system capacity 1,850 GPH at 10 Ft. lift and 2,600 GPH at 0 Ft. lift
  • Includes a WiFi capable battery backup system that provides 24 hours a day monitoring of pump, power and battery conditions, backup controller will sound an alarm, illuminates a warning light and describe what to do for easy maintenance
  • Allows for connection to a Basement Watchdog CONNECT Module (BW-WiFi or BW-HZM), giving you real time alerts via text, email, or through the Basement Watchdog App
  • Provides days of intermittent pumping power on a single battery charge and is compatible with both wet cell and maintenance-free AGM batteries. Connect two batteries in parallel for double the run time

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