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6 Best Sump Pumps For Crawl Spaces 2025 in the United States

#1

Winner

9.8 score

Superior Pump 91014 1/4 HP High Flow Thermoplastic Utility Pump, Black

Superior Pump 91014 1/4 HP High Flow Thermoplastic Utility Pump, Black

Superior Pump

9.8 score

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The Superior Pump 91014 is a 1/4 HP high-flow utility pump designed for various water removal tasks, including use in crawl spaces. With the ability to move up to 2220 gallons per hour and pump water vertically up to 25 feet, it offers impressive performance for its size. The pump features a sturdy thermoplastic construction, making it durable and resistant to corrosion, which is beneficial for long-term use in damp environments.

#2
9.6 score

Little Giant CS-SS 115-Volt, 1/3 HP, 3000 GPH Pre-Packaged Automatic Crawl Space Sump System with 20-Ft. Cord, Blue/Black, 14940655

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Little Giant CS-SS 115-Volt, 1/3 HP, 3000 GPH Pre-Packaged Automatic Crawl Space Sump System with 20-Ft. Cord, Blue/Black, 14940655

Little Giant

9.6 score

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The Little Giant CS-SS 115-Volt, 1/3 HP Automatic Crawl Space Sump System is a solid choice for managing water in low-lying residential areas such as crawl spaces and shallow sump pits. It can also help prevent standing water in yards, patios, and driveways. One of its main strengths is its complete ready-to-assemble system, which includes a durable cast iron sump pump, a perforated polypropylene basin, a structural foam cover, a discharge hose kit, and a check valve. This makes it convenient for users, as everything needed for installation is included.

Rating
9.6
Switch Type
Material and Durability

Most important from
36 reviews

Switch Type
The system operates quietly and responds quickly to water.
Material and Durability
After three years, this pump system has worked flawlessly, preventing septic tank backups and saving significant maintenance costs.
#3
9.4 score

Crawl Space Sump Pump with Kit

Crawl Space Sump Pump with Kit

Zoeller

9.4 score

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The Crawl Space Sump Pump with Kit by Zoeller appears to be a solid choice for managing water in crawl spaces. This pump is made in the USA and features a durable polyethylene basin. It runs on a 115-volt AC/DC power source and weighs 32 pounds, making it relatively easy to handle and install. With dimensions of 16.5 x 16.4 x 21.9 inches, it should fit well in most crawl space settings.

Rating
9.4
Material and Durability

Most important from
63 reviews

Material and Durability
The pump's cast iron construction and quality are impressive, though an anti-drain back valve needs to be purchased separately.

Top 6 Best Sump Pumps For Crawl Spaces 2025 in the United States

Sponsored

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HydroCheck

HydroCheck HC6000-PRO Smart Sump Pump Float Switch & Performance Monitor w/Data Tracking, LCD Screen Display Real-Time Information, Built-in Alarms, & Dual-Sensors for Optimal Efficiency, Made in USA

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#1

Winner

9.8 score

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Superior Pump

Superior Pump 91014 1/4 HP High Flow Thermoplastic Utility Pump, Black

Pump Type: Utility Pump
Horsepower (HP): 1/4 HP
Flow Rate: 2220 gallons/hour
Head Pressure: 25 feet
Switch Type: Manual
Material and Durability: Thermoplastic, corrosion-resistant

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Chosen by 1410 this week

Sponsored

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HydroCheck

HydroCheck HC6000-PRO Smart Sump Pump Float Switch & Performance Monitor w/Data Tracking, LCD Screen Display Real-Time Information, Built-in Alarms, & Dual-Sensors for Optimal Efficiency, Made in USA

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#2

9.6 score

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Little Giant

Little Giant CS-SS 115-Volt, 1/3 HP, 3000 GPH Pre-Packaged Automatic Crawl Space Sump System with 20-Ft. Cord, Blue/Black, 14940655

Pump Type: Automatic Crawl Space Sump
Horsepower (HP): 0.33
Flow Rate: 3000 GPH at 5-ft
Head Pressure: 22 Feet
Switch Type: Snap-action float
Material and Durability: Polyethylene, Structural Foam, Cast Iron

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#3

9.4 score

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Zoeller

Crawl Space Sump Pump with Kit

Pump Type: Sump Pump
Material and Durability: Polyethylene Basin

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#4

9.1 score

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Liberty Pumps

Liberty Pumps CSP-257 1/3 HP Cast Iron Crawl Space Sump Pump Kit, NA

Pump Type: Submersible
Horsepower (HP): 1/3 HP
Material and Durability: Cast Iron, Stainless Steel
Backup System: Battery Powered

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#5

8.8 score

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Liberty Pumps

Liberty Pumps CSP-457 1/2-Horse Power 1-1/2-Inch Discharge 450-Series Crawl Space Sump Pump Kit

Pump Type: Sump Pump
Horsepower (HP): 0.5 hp
Flow Rate: 50 GPM
Head Pressure: 34 Feet
Switch Type: VMF switch
Material and Durability: Aluminum

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Related Products

#6

8.5 score

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PumpSpy

PumpSpy Sump Pump 1/2 HP - Submersible Pump, Water Removal for Basement, Crawl Space Sump Pump Kit, Iron Cast, Strong Suction at 4320 GPH, 10 Lift, 7 Amp Motor with Corrosion & Rust Resistant Housing

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Buying Guide for the Best Sump Pumps For Crawl Spaces

Choosing the right sump pump for your crawl space is crucial to prevent water damage and maintain a dry, healthy environment. A sump pump helps to remove accumulated water from the crawl space, protecting your home from potential flooding and moisture-related issues. When selecting a sump pump, it's important to consider several key specifications to ensure you get the best fit for your needs. Understanding these specifications will help you make an informed decision and choose a sump pump that effectively meets your requirements.
Pump TypeThere are two main types of sump pumps: submersible and pedestal. A submersible pump is designed to be placed underwater in the sump pit, making it quieter and less obtrusive. A pedestal pump has a motor that sits above the sump pit, making it easier to access for maintenance but potentially noisier. If your crawl space is prone to frequent flooding, a submersible pump might be a better choice due to its efficiency and quiet operation. For less frequent use or easier maintenance, a pedestal pump could be more suitable.
Horsepower (HP)Horsepower determines the power of the sump pump and its ability to move water. Sump pumps typically range from 1/4 HP to 1 HP. A 1/4 HP pump is suitable for smaller crawl spaces with minimal water intrusion, while a 1/2 HP pump is more versatile and can handle moderate flooding. For larger crawl spaces or areas with significant water problems, a 3/4 HP or 1 HP pump may be necessary. Assess the size of your crawl space and the severity of water issues to determine the appropriate horsepower for your needs.
Flow RateThe flow rate, measured in gallons per hour (GPH), indicates how much water the pump can move in a given time. Higher GPH means the pump can remove water more quickly. For small to medium crawl spaces with occasional water issues, a pump with a flow rate of 2,000 to 3,000 GPH should suffice. For larger spaces or areas with heavy water intrusion, look for a pump with a flow rate of 4,000 GPH or more. Consider the typical water volume in your crawl space to choose a pump with an adequate flow rate.
Head PressureHead pressure, or maximum lift, refers to the height the pump can raise water from the sump pit to the discharge point. This is important if you need to move water vertically over a significant distance. Sump pumps typically have a head pressure range of 10 to 25 feet. For crawl spaces with a short discharge distance, a pump with a lower head pressure will be sufficient. If you need to pump water to a higher elevation or over a longer distance, choose a pump with a higher head pressure to ensure efficient water removal.
Switch TypeSump pumps use different types of switches to activate the pump when water levels rise. The main types are float switches, diaphragm switches, and electronic switches. Float switches are the most common and reliable, using a floating device to trigger the pump. Diaphragm switches activate based on water pressure changes, while electronic switches use sensors to detect water levels. For most crawl spaces, a float switch is a dependable choice. If you prefer a more advanced system, consider a pump with an electronic switch for precise water level detection.
Material and DurabilityThe materials used in the construction of the sump pump affect its durability and longevity. Pumps made from cast iron or stainless steel are more durable and resistant to corrosion, making them ideal for long-term use in wet environments. Thermoplastic pumps are lighter and more affordable but may not last as long. If your crawl space experiences frequent water issues, investing in a durable pump made from high-quality materials is advisable. For occasional use, a thermoplastic pump may be sufficient.
Backup SystemA backup system ensures that your sump pump continues to operate during power outages or pump failures. Battery backup systems are the most common, providing power to the pump when the main power source is unavailable. Water-powered backup systems use the home's water pressure to operate the pump. If your area is prone to power outages or you want extra peace of mind, consider a sump pump with a reliable backup system. This will help protect your crawl space from flooding even during emergencies.

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