Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Advertising Disclosure
10 Best water backup sump pumps of 2026
Save up to 13% off
Best Choice1
Clicked 27 times in the last monthLiberty PumpsLiberty Pumps SJ10A-EYE SumpJet Water Powered Back-Up Sump Pump with NightEye Wireless Alarm
9.6Exceptional
Our Rating
-
-
Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you
Careful review Our team ensures quality, value, and fit based on real user feedback
Trusted insights AI and human analysis guide your decisions, reflecting real user prioritiesReal users impact
Thousands of users trust our site daily
- Based on millions of stores and reviews
- Shoppers influence our rankings
Analyzing top stores
Value for Money2
BasepumpBasepump HB1000-PRO Premium High Volume Water Powered Backup Sump Pump - Reliable Auto Sump Pump Backup System with High Water Alarm for Basement Flood Prevention - No Battery or Electricity Needed
9.5Excellent
Our Rating
-
3
Liberty PumpsLiberty Pumps SJ10 SumpJet Water Powered Back-Up Pump, Gray
Key specs-
Power Source:Corded Electric
-
Size:1-1/2
-
Maximum Flow Rate:19.8 Gallons Per Minute
-
Material:PVC
-
Maximum Lifting Height:21.6 Inches
9.2Excellent
Our Rating
-
4
ZoellerZoeller 540 FLEX Water-Powered Backup Sump Pump System – No Battery or Electricity Required - Installs Horizontally or Vertically - Works During Sump Pump Failure - ¾″ Inlet / 1-½″ Discharge
9.1Excellent
Our Rating
-
5
StarStar Basement Sentry Water Powered Backup Sump Pump System (STWB140) Uses Water Pressure - No Electricity or Batteries Required, Automatically Self Activates in Emergency & Pumps up to 20 GPM
Key specs-
Power Source:Water Pressure
-
Size:One Size
-
Maximum Flow Rate:20 GPM
-
Material:Plastic
-
Maximum Lifting Height:N/A
9.0Excellent
Our Rating
-
-
See Today’s Deals & Prices
6
Liberty PumpsSumpJet® Water Powered Backup Emergency Sump Pump with NightEye® Wireless Alarm
8.9Very Good
-
7
THE BASEMENT WATCHDOGThe Basement Watchdog Special CONNECT Battery Backup Sump Pump System - Up to 2,600 GPH - WiFi-Capable w/Add-on Module (BWSP)
8.6Very Good
Our Rating
-
8
BasepumpBasepump RB750 Water Powered Backup Sump Pump - Reliable Auto Sump Pump Backup System with High Water Alarm for Basement Flood Prevention - No Battery or Electricity Needed
Key specs-
Power Source:Battery Powered
-
Size:16L x 4W x 6H
-
Maximum Flow Rate:15 Gallons Per Minute
-
Material:Polypropylene
-
Maximum Lifting Height:N/A
8.5Good
Our Rating
-
9
AQUASTRONGAquastrong Sump Pump 1 HP 4500 GPH Submersible Water Pump Thermoplastic Portable Utility Pump High Flow Water Removal for Swimming Pool Garden Pond Basement Window Wells with 10ft Long Power Cord
13% OffKey specs-
horsepower:1HP
-
material:Thermoplastic
-
maximum height:30ft
-
power source:AC
-
style:1 HP Sump Pump
8.2Good
Our Rating
-
10
THE BASEMENT WATCHDOGThe Basement Watchdog Combo Preassembled Primary & Battery Backup Sump Pump System w/Monitoring Controller (CITE-33)
Key specs-
Power Source:Battery Powered
-
Size:11.75L x 8.75W x 18H
-
Maximum Flow Rate:73.3 Gallons Per Minute
-
Material:Cast Iron
-
Maximum Lifting Height:10 Feet
8.1Good
Our Rating
-
