Choosing a submersible pump with adequate horsepower ensures quick water removal and dependable operation in basements, pools, and other flooded areas. This guide focuses on models around 5 horsepower or capable of similar high-flow performance, drawing on popular options from trusted brands. Below you’ll find five solid picks with essential features, suitable for commercial, industrial, and home use. Each entry includes practical considerations to help you compare performance, durability, and ease of installation.
Summary of selected products (by key attributes):
- Little Giant 5-ASP-LL: 1/6 HP submersible utility pump with automatic diaphragm switch, 1500 GPH, 18 ft cord.
- Little Giant 5-MSP (Manual): 1/6 HP, 1500 GPH, 25 ft cord, submersible and robust.
- Little Giant 5-MSP (Automatic, 18 ft cord): 1/6 HP, 1500 GPH, efficient for small to medium spaces.
- Aquastrong Sump Pump: 1 HP, 4500 GPH, 30 ft lift, portable, for larger jobs.
- Wayne CDU980E Series: 3/4 HP to 3/4 HP variants with cast iron/stainless steel construction and high flow.
Little Giant 5-ASP-LL 115V Submersible Utility Pump
Overview: This automatic submersible utility pump is built for submersion and includes a piggyback diaphragm switch with an 18-foot cord. It provides a 1-inch FNPT discharge and a 3/4-inch garden hose adapter for versatile drainage. Its epoxy-coated die-cast aluminum body houses a 1/6 HP PSC motor with overload protection, designed for energy efficiency and reliability in commercial, industrial, and home transfer or recirculation tasks.
Features to note: The pump is designed for submersible use only, with a durable construction and protection against overload. The built-in diaphragm switch enables automatic operation, which is convenient for unattended drainage. Applications include sump areas, transient water transfer, and small-scale dewatering tasks where moderate flow is sufficient. Consider ensuring compatibility with discharge fittings and the required hose connections for your setup.
Little Giant 5-MSP 115V Manual Utility Pump
Overview: This manual submersible pump with a 25-foot cord is designed for liquid transfer and recirculation in commercial, industrial, and home environments. It features a 1-inch FNPT discharge and a 3/4-inch garden hose adapter. The epoxy-coated aluminum body houses a 1/6 HP shaded pole motor with thermal overload protection. A removable screen protects the impeller and motor, aiding durability and maintenance in debris-prone settings.
Considerations: The manual operation model is best where there is reliable access to power and where continuous automatic control isn’t required. The removable screen helps prevent clogs, but you’ll want to monitor debris levels in your pit or area. This unit is suitable for basements, utility rooms, and other spaces needing dependable water removal with straightforward upkeep.
Little Giant 5-MSP 115V Manual Aluminum Utility Pump (18 ft Cord)
Overview: This is another 5-MSP manual model featuring an 18-foot cord, 1-inch FNPT discharge, and a 3/4-inch garden hose adapter. It shares the same epoxy-coated die-cast aluminum construction and a 1/6 HP motor with thermal overload protection. A removable screen protects the impeller and motor, making it suited for small to mid-size water transfer or dewatering tasks where manual control is preferred.
Considerations: Ideal for concrete workspaces, crawl spaces, and temporary setups where automatic switching isn’t necessary. Ensure proper hose compatibility and check that the level of solids is within the pump’s debris tolerance to avoid clogs.
Aquastrong Sump Pump 1 HP 4500 GPH
Overview: A high-flow submersible pump designed for rapid water removal, this Aquastrong model delivers up to 4500 GPH with a 30-foot lift. It’s portable with a 10-foot power cord and includes a bottom suction design that helps draw water and filter debris to prevent blockages. The 1-1/4 inch discharge, with compatible adapters, supports flexible installation across pools, basins, basements, and window wells.
Considerations: Suitable for larger areas or hotter climates where faster drainage is required. The bottom suction helps avoid air locks, and the device’s build is geared toward long-term residential and light commercial use. Be mindful of solids handling limits and ensure the setup can handle the 30-foot lift potential in your space.
Wayne CDU980E 3/4 HP Submersible Sump Pump
Overview: This Wayne CDU980E model offers a robust 3/4 HP motor housed in corrosion-resistant stainless steel with a cast-iron volute for durability. It features a top suction design to reduce air locks and minimize debris-related clogs. Installation is straightforward, typically completed in about 15 minutes with no weep hole drilling required. Capable of handling up to 5,490 GPH, it is suitable for demanding basement sump scenarios.
Considerations: The combination of stainless steel and cast iron provides strength in demanding environments. Ensure the top suction design aligns with your sump pit geometry and confirm that the pump’s intake and discharge fit your available piping and adapters.
Wayne CDU790 1/3 HP Submersible Pump
Overview: This 1/3 HP Wayne sump pump emphasizes top suction design to minimize air locks and blockages, with a cast-iron and stainless steel composition for longevity. It’s designed for indoor use and is straightforward to install in around 15 minutes. The pump handles up to 4,600 GPH, making it a solid option for smaller basements or utility rooms where efficient water removal is needed.
Buying Guide: Key Purchase Considerations
- Flow rate (GPH) and lift height: Higher GPH is essential for rapid water removal, while lift height indicates how high water must be pumped. Match these to your space and the worst-case water scenario.
- Submersible design and materials: Submersible pumps need durable housings (aluminum, stainless steel, or cast iron) to resist corrosion and wear. Consider the environment and whether aluminum or steel suits your pit materials.
- Automatic vs. manual operation: Automatic pumps with switches (float or diaphragm) reduce supervision, especially for basements or pool covers. Manual models offer control when automatic operation isn’t needed.
- Discharge fittings and adapters: Ensure compatibility with 1-inch FNPT or other common sizes, and confirm hose adapters to fit your drainage plan.
- Debris handling: Screens and bottom suction help prevent clogs. If pumping debris-laden water, verify solids handling capabilities and cleaning requirements.
- Cord length and power: Longer cords provide placement flexibility but may affect voltage drop in large spaces. Check available outlets and total running wattage for safety and efficiency.
- Durability and warranty: Pumps with epoxy coatings or corrosion-resistant housings and robust motors typically offer longer service intervals. Review warranty terms for service and replacement options.
- Installation considerations: Some models are easier to install with quick-connect fittings; others require more DIY work. Assess your tool availability and skill level before purchasing.
Overall, selecting the right 5 hp-class submersible pump or near-equivalents depends on the scale of your water removal task, the environment, and how hands-off you want operation to be. The products above provide both automatic and manual options with varying flow rates to cover common residential and light commercial needs.