Best Water Back Up Sump Pump System in 2025
Updated on July 2025
#1
Recommended
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- 20 to 100 psi inlet supply pressure compatibility
- Automatic operation
- High flow rate
- Space-saving design
- Comes fully assembled
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- 20 to 100 psi inlet supply pressure compatibility
- Automatic operation
- High flow rate
- Space-saving design
- Comes fully assembled
#2
Value for Money
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- Water-powered backup sump pump
- Designed for use with existing sump pump systems
- Helps prevent basement flooding
- Automatically activates when primary pump fails
- Energy efficient and eco-friendly solution
- Compact design for easy installation
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- Water-powered backup sump pump
- Designed for use with existing sump pump systems
- Helps prevent basement flooding
- Automatically activates when primary pump fails
- Energy efficient and eco-friendly solution
- Compact design for easy installation
#3
11% Off
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- Pumps 2,000 GPH at zero lift and 1,000 GPH at 10 ft. lift
- User-friendly control panel provides 24/7 monitoring and maintenance alarms
- Dual float switch for added protection
- Operates for days on a single battery charge
- Fluid sensor monitors battery fluid level
- Includes control unit, battery fluid level sensor, pump adapter, battery box, and automatic charger (battery sold separately)
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- Pumps 2,000 GPH at zero lift and 1,000 GPH at 10 ft. lift
- User-friendly control panel provides 24/7 monitoring and maintenance alarms
- Dual float switch for added protection
- Operates for days on a single battery charge
- Fluid sensor monitors battery fluid level
- Includes control unit, battery fluid level sensor, pump adapter, battery box, and automatic charger (battery sold separately)
#4
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- Pumps 2,500 gallons per hour (GPH) at 0 feet lift and 1,730 GPH at 10 feet lift
- Control panel features warning lights and maintenance instructions
- Battery fluid level sensor for monitoring
- Package includes controller, charger, dual float switch, pump, and battery box (battery not included)
- Compact design fits in small or narrow sump pits
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- Pumps 2,500 gallons per hour (GPH) at 0 feet lift and 1,730 GPH at 10 feet lift
- Control panel features warning lights and maintenance instructions
- Battery fluid level sensor for monitoring
- Package includes controller, charger, dual float switch, pump, and battery box (battery not included)
- Compact design fits in small or narrow sump pits
#5
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- No maintenance required; no need for battery fluid or distilled water.
- Provides up to 40 hours of backup power for Basement Watchdog Big Dog (BWD12-120C+) systems.
- Offers up to 80 hours of backup power for Basement Watchdog Emergency (BWE) and Combination sump pump systems (DFK961, CITE-33).
- Delivers up to 48 hours of backup for Basement Watchdog Special + (BWSP+) and Combination systems (BW4000, CITS-50).
- Supports intermittent operation of multiple Basement Watchdog sump pump systems for several days.
- Compatibility note: Older models with Remote Terminal from before 2014 are compatible; non-compatible systems may have false alarms.
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- No maintenance required; no need for battery fluid or distilled water.
- Provides up to 40 hours of backup power for Basement Watchdog Big Dog (BWD12-120C+) systems.
- Offers up to 80 hours of backup power for Basement Watchdog Emergency (BWE) and Combination sump pump systems (DFK961, CITE-33).
- Delivers up to 48 hours of backup for Basement Watchdog Special + (BWSP+) and Combination systems (BW4000, CITS-50).
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#6
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- Preassembled and preplumbed for easy installation
- Energy-efficient 1/3 HP PSC primary pump helps reduce electric bills
- Primary pump capacity: 3,100 GPH at 10 ft. lift; 3,720 GPH at 0 ft. lift
- Dual float switches on primary and backup pumps enhance protection
- Includes an emergency battery backup with 24/7 monitoring
- Compact design fits pits with a minimum diameter of 12 inches
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- Preassembled and preplumbed for easy installation
- Energy-efficient 1/3 HP PSC primary pump helps reduce electric bills
- Primary pump capacity: 3,100 GPH at 10 ft. lift; 3,720 GPH at 0 ft. lift
- Dual float switches on primary and backup pumps enhance protection
- Includes an emergency battery backup with 24/7 monitoring
- Compact design fits pits with a minimum diameter of 12 inches
#7
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- Water powered backup sump pump operates automatically using municipal water pressure for reliable performance.
- No electricity or batteries required, ensuring consistent operation during power outages without maintenance concerns.
- Installation is straightforward, with included plumbing parts for convenience and cost savings.
- A water alarm is included to detect rising water levels, featuring an 85 dB sound when triggered for immediate awareness.
- Maintains a cost-effective design with no moving parts, eliminating the need for repairs and minimizing maintenance efforts.
- All components are replaceable, allowing for easy repairs without the need for a complete unit replacement.
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- Water powered backup sump pump operates automatically using municipal water pressure for reliable performance.
- No electricity or batteries required, ensuring consistent operation during power outages without maintenance concerns.
- Installation is straightforward, with included plumbing parts for convenience and cost savings.
- A water alarm is included to detect rising water levels, featuring an 85 dB sound when triggered for immediate awareness.
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#8
6% Off
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- Powerful 2500W backup system for sump pumps, auto-switching to battery during outages.
- High-definition LCD remote control displays voltage, power, and battery status.
- Three grounded outlets and USB ports accommodate various appliances with built-in safety features.
- Adjustable input voltage (9.5V-11V) enhances compatibility with lithium batteries and prolongs battery life.
- Simple installation with no additional wiring; can be mounted on flat surfaces or walls.
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- Powerful 2500W backup system for sump pumps, auto-switching to battery during outages.
- High-definition LCD remote control displays voltage, power, and battery status.
- Three grounded outlets and USB ports accommodate various appliances with built-in safety features.
- Adjustable input voltage (9.5V-11V) enhances compatibility with lithium batteries and prolongs battery life.
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#9
6% Off
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- 1/2 HP primary sump pump can handle up to 5,200 GPH, while backup pump removes water at 2,700 GPH.
- Integrated battery backup activates during power outages to maintain dry conditions in basements or crawlspaces.
- User-friendly installation with a metal connector and volute top suction design for efficient and quiet operation.
- Dual check valves prevent backflow, ensuring safe and reliable one-way water flow.
- Vertical float switch tested for over 1 million cycles, guaranteeing protection against water damage.
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- 1/2 HP primary sump pump can handle up to 5,200 GPH, while backup pump removes water at 2,700 GPH.
- Integrated battery backup activates during power outages to maintain dry conditions in basements or crawlspaces.
- User-friendly installation with a metal connector and volute top suction design for efficient and quiet operation.
- Dual check valves prevent backflow, ensuring safe and reliable one-way water flow.
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#10
![WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty](https://m.media-amazon.com/images/I/41QwOPf-mFL._SL320_.jpg)
![WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty](https://m.media-amazon.com/images/I/417jnTN0C1L._SL320_.jpg)
![WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty](https://m.media-amazon.com/images/I/41u5THutFSL._SL320_.jpg)
![WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty](https://m.media-amazon.com/images/I/31PrlR0y-AL._SL320_.jpg)
![WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty](https://m.media-amazon.com/images/I/41QwOPf-mFL._SL100_.jpg){kind=small}
![WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty](https://m.media-amazon.com/images/I/417jnTN0C1L._SL100_.jpg)
![WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty](https://m.media-amazon.com/images/I/41u5THutFSL._SL100_.jpg)
![WAYNE - 1/2 HP Basement [Sump] [Pump] System with Integrated Vertical Float Switch and 12 Volt [Battery] Back Up Capability, [Battery] Not Included - Up to 5,100 Gallons Per Hour - Heavy Duty](https://m.media-amazon.com/images/I/31PrlR0y-AL._SL100_.jpg)
9% Off
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- Suitable for indoor use, the 1/2 HP WAYNE sump system is designed to manage heavy water flow in basements, ensuring dryness during rain or snowmelts even during power outages.
- The WSS30VN can pump up to 5,100 GPH and remove 10,000 gallons on a single battery charge; requires WAYNE WSB1275 75 AH Battery (not included) for backup operation.
- Preassembled for easy installation, this sump pump can be set up in 15 minutes in sump basins with a diameter of 16 inches or more, without the need for drilling.
- Tested for 1 million cycles, the system is built for durability and comes with an 8-foot SJTW power cord for added convenience.
- Assembled in the USA, the pump is backed by a 3-year warranty, ensuring reliable and quiet performance.
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- Suitable for indoor use, the 1/2 HP WAYNE sump system is designed to manage heavy water flow in basements, ensuring dryness during rain or snowmelts even during power outages.
- The WSS30VN can pump up to 5,100 GPH and remove 10,000 gallons on a single battery charge; requires WAYNE WSB1275 75 AH Battery (not included) for backup operation.
- Preassembled for easy installation, this sump pump can be set up in 15 minutes in sump basins with a diameter of 16 inches or more, without the need for drilling.
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