Best Float Sump Pumps of 2025

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Float sump pumps are an essential tool for any homeowner looking to prevent flooding in their home. These pumps are designed to automatically turn on when water levels reach a certain point in the sump pit, and pump the water out of the space before it can cause any damage. They are typically installed in basements or crawl spaces and can handle a variety of different types of water, including groundwater, rainwater, and sewage. With their reliable and durable construction, float sump pumps provide a cost-effective solution for keeping your home safe and dry.
At a Glance: Our Top Picks
Top 10 Float Sump Pumps
FLUENTPOWER 1/2HP Sump Pump
The FLUENTPOWER 1/2HP Sump Pump is a powerful and reliable submersible utility pump that can be operated automatically or manually. With a maximum flow rate of 42 gallons per minute and a maximum lifting height of 26 feet, this pump can transfer water effectively and efficiently. The upgraded sealing structure and full corrosion-resistant shell ensure longer durability and safety. The pump is easy to install and comes with three plastic adapters. It is ideal for heavy-duty draining applications including pools, ponds, pits, wells, ditches, and basements. Customers can buy with confidence as the pump comes with lifelong technical consultation, 24-hour customer service, and a one-year manufacturer's warranty.
POXURIO 1HP Automatic Sump Pump
The POXURIO Sump Pump is a powerful tool for your drainage needs, featuring a robust 1HP motor that can handle up to 5000 gallons per hour and lift water as high as 30 feet. It includes multiple outlet sizes, so you can easily connect it to different pipe setups. The high-quality sealing structure ensures durability and resistance to corrosion, providing you with reliable performance. Plus, the automatic float switch allows for effortless operation, turning the pump on or off as needed, making your water removal tasks much simpler.
WAYNE CDU790 1/3 HP Submersible Sump Pump
This 1/3 HP submersible sump pump is perfect for keeping your basement dry during heavy water flow. Its tough and durable design ensures long-lasting use, and the top suction design minimizes clogging. The vertical float switch has been tested for long-lasting use, up to 10 times more than competitors, and the pump is easy to install. With a 1-1/2” NPT discharge, this pump is compliant with building codes.
Superior Pump 92341 1/3 HP Cast Iron Submersible Sump Pump
The Superior Pump 92341 is a sump pump with 1/3 HP motor that can move up to 2,760 gallons per hour and lift water up to 25' of vertical height. It features rugged cast iron construction, a 10-foot cord length, a vertical float switch for automatic on/off operation, and a 1-1/2 inch NPT discharge for high capacity pumping. This pump is built to last with quality components and factory tested for reliability.
Green Expert 1HP Sump Pump
The Green Expert Sump Pump is designed for efficient water removal with its powerful 1.0HP motor, capable of lifting water up to 26 feet and pumping 4000 gallons per hour. You can easily switch between manual and automatic modes, allowing you to control water levels precisely. The adjustable start water depth feature ensures the pump activates at your desired level, providing flexibility for various situations. Its portable design, with a 25-foot power cord, makes it simple to set up and use in flooded areas, basements, or pools, offering you convenience and reliability.
Green Expert 1/4HP Submersible Pump
The Green Expert Sump Pump is designed for efficient water removal in various situations. Its oil-free motor delivers reliable power, moving up to 2,000 gallons per hour, making it ideal for flooded basements or pools. You can choose between manual and automatic operation, allowing you to adapt to your specific needs easily. The built-in float switch is designed to avoid debris entanglement, ensuring stable performance. With a convenient 25-foot power cord, you can set it up from a distance, making it perfect for hard-to-reach areas.
Wayne CDU980E 3/4 HP Sump Pump
The Wayne Sump Pump CDU980E is designed for indoor use, making it ideal for keeping your basement dry during heavy rainfall or snowmelt. With its powerful 3/4 HP motor, it can pump an impressive 5,490 gallons per hour, ensuring your space stays free of water. Its robust construction features corrosion-resistant stainless steel and cast iron, providing durability for long-term use. The smart top suction design prevents clogging and air lock, while the easy installation process takes just about 15 minutes, allowing you to quickly safeguard your home from water damage.
Prostormer 3500 GPH 1HP Submersible Water Pump
Prostormer Water Pump is a powerful and efficient tool designed to tackle any draining job at a fraction of the time. With 1HP high power, it is more efficient than ordinary 3/4HP sump pump. It comes with 3 different diameters outlets to adapt to different size hoses as needed according to the flow rate. The bigger the flow is, the wider the outlet should be. The pump has two modes, manual and automated. In manual mode, it can carry out pumping even if the remaining water level is reached and the pump runs dry. In automated mode, it will switch on automatically when the water exceeds the start-level and switch off when the stop-level has been obtained. The sump pump features a durable sealing structure and a thermoplastic body that keeps the pump from corrosion. Its higher base plate also assures the prevention of debris collection in the sump pit.
Lanchez 1.6HP Water Sump Pump
The Lanchez 1.6HP Pump is a powerful and efficient submersible water pump that can handle any draining job with ease. Its 1.6HP high performance PSC copper motor ensures great flow while being energy efficient and quiet. With the ability to lift water up to 29' of vertical height and move up to 5,177 gallons per hour, this pump can tackle even the toughest water removal tasks in a fraction of the time. The pump comes with a variety of adapters for easy installation and its full stainless steel casing ensures corrosion resistance and better cooling. The automatic float switch allows for convenient operation, automatically starting the pump when the water level rises and disconnecting power when the pump can no longer pump water. With its wide application range and customer-first approach, the Lanchez 1.6HP Pump is a reliable choice for draining water in various scenarios.
Superior Pump 92250 1/4-HP Submersible Sump Pump
The Superior Pump 92250 1/4-HP Submersible Sump Pump is a reliable and efficient solution for removing water from your basement or crawl space. With a 1/4 HP motor, this pump can move up to 1,800 gallons per hour and lift water up to 25 feet of vertical height. Its tough thermoplastic construction and 10-foot cord length make it durable and easy to use. The tethered float switch automatically turns the pump on and off, while the 1-1/4 inch or 1-1/2 inch NPT discharge allows for high-capacity pumping. Superior Pumps are Built to Last, engineered with quality components and are 100% factory tested.
Frequently Asked Questions (FAQs)
1. What is a float on a sump pump?
A sump pump float switch acts as a level sensor to alert your pump to rising water levels in a sump pit. As the water level rises to a certain point, a pump's float switch will open a circuit which allows the pump to begin pumping water up and out of the basement.
2. Where should the float be in a sump pump?
The Float Switch should hang a few inches above the top of your sump pump motor. The exact height will vary depending on the size of your sump pit and the power of your sump pump motor.
3. Can you add a float switch to a sump pump?
Installing a new float level switch will turn a regular sump pump into an automatic one. You simply need to use a float level sensor with two switch points (High and Low) such as the FLE series, and a powered pump relay such as the inexpensive RCU-7000.
4. How does a sump float work?
A sump pump float switch detects flooding in the sump; it's what turns your sump pump on and off in response to the amount of water in the sump pit. The device relies on a round float ball to measure liquid level, like a beach ball that floats on top of the water. When the water rises, the float rises with it.
During our float sump pump research, we found 24 float sump pump products and shortlisted 10 quality products. We collected and analyzed 57,552 customer reviews through our big data system to write the float sump pumps list. We found that most customers choose float sump pumps with an average price of $75.84.
The float sump pumps are available for purchase. We have researched hundreds of brands and picked the top brands of float sump pumps, including FLUENTPOWER, POXURIO, Wayne, Superior Pump, G green EXPERT. The seller of top 1 product has received honest feedback from 83 consumers with an average rating of 4.8.

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.