When you need to move large amounts of water, a high volume pump saves time and reduces effort. This guide highlights top-rated options, across sump, lawn, irrigation, and RV applications, to help you choose a pump that matches your flow needs, power source, and durability expectations. The following selections emphasize high flow rates, robust construction, and reliable automatic operation where applicable.
| Product | Brand | Max Flow (GPH) | Power Source |
|---|---|---|---|
| 6699 Sump Pump Submersible 7000GPH | 6699 | 7000 | Electric |
| WaterRebirth 5700GPH Submersible | WaterRebirth | 5700 | Electric |
| WAYNE WLS200 – 2 HP | Wayne | ~4200 | Electric |
| 3/4 HP Water Pressure Booster Pump | TDR Venus | 1020 | Electric |
| EXTRAUP 115V 1/2HP 1500 GPH | EXTRAUP | 1500 | Electric |
Note: All products listed here are designed for high-volume water movement across different environments, including sump pits, ponds, irrigation, and household water systems. Consider your required head (lift) and the type of water you’ll pump when making a choice.
6699 Sump Pump Submersible 7000GPH

This submersible sump pump delivers up to 7000 GPH with a 1.5 HP motor, designed for rapid water removal in flooded basements, pools, or large sump pits. A 16-foot power cord provides flexible placement, and the pump can lift water up to 30 feet. The integrated float switch enables automatic operation, stopping when levels drop below 8 inches and restarting at 24 inches. Durable 304 stainless steel housing and corrosion-resistant plastic offer long-term reliability in challenging environments.
Key considerations: high flow for fast water removal; float-controlled automatic operation reduces manual monitoring; stainless steel housing aids durability in damp settings. Ideal for flood mitigation, pool drainage, or large sump applications where power and lift are required.
1/2 HP On Demand Household Water Booster Pump

This high-volume booster pump is suitable for improving home water pressure, with a maximum lift of 105 feet and a robust 14 GPM (840 GPH) flow. It supports automatic operation—start when water is drawn and shut off when not needed—and includes adjustable pressure via a control behind the controller. This makes it a practical choice for households seeking stronger shower and faucet performance without manual priming.
Key considerations: well-suited for modest to mid-scale pressure boosting; built-in automatic control simplifies daily use; compatible with irrigation and garden hose systems when extra pressure is needed.
WAYNE WLS200 – 2 HP High Volume Lawn Pump

The WAYNE WLS200 is a 2 HP outdoor pump designed for lawn irrigation and sprinkler systems, delivering up to 4,200 GPH. Its rugged cast iron volute supports durability in outdoor conditions, while 2” NPT suction and 1-1/2” NPT discharge ports optimize flow. The pump is factory-set for 230 V, providing strong performance for garden watering, pool circulation, or remote irrigation zones. Its robust construction targets long outdoor service life in challenging weather.
Key considerations: best for outdoor irrigation and sprinkler setups requiring reliable, continuous high flow; cast iron construction withstands weather and roots; compatible with standard PVC piping for quick installation.
EXTRAUP 115V 1/2HP 1500 GPH Pump

EXTRAUP offers a portable, durable 1/2 HP transfer pump capable of up to 1500 GPH with a maximum lift of 120 feet. The cast iron body and ON/OFF switch provide reliable operation for transferring water between tanks, basements, or workshop basins. Brass connectors suit standard 3/4″ hoses, simplifying compatibility with common garden and workshop setups. This pump is designed for high-volume transfer rather than continuous sump duty.
Key considerations: strong for transfer tasks; portable design allows versatile use across multiple sites; brass fittings ensure durable hose connections and low wear over time.
Kohree RV Fresh Water Pump (7GPM, 70PSI)

Designed for mobile and compact systems, Kohree’s 12V DC water pump delivers 7 GPM with a 70 PSI setting, making it suitable for RVs, marine, and small boats. Self-priming up to 10 feet and a maximum horizontal prime reach up to 155 feet enable stable operation with limited space. An automatic start-stop function supports hands-off operation, while a thermal overload protection extends motor life in variable conditions.
Key considerations: best for mobile or small-scale systems needing steady, moderate flow; self-priming capability helps without complex plumbing; compact footprint fits tight installations like RVs or marine setups.
Buying Guide: High Volume Water Pumps
- Flow rate vs. head: Higher GPH pumps move more water, but the “lift” (head) capacity matters. Match the maximum height you need to lift water with the pump’s capability.
- Submersible vs. external: Submersible pumps are ideal for sump pits and flooded areas; above-ground pumps are common for irrigation and booster duties. Consider where the pump will operate most of the time.
- Durability and materials: Stainless steel housings, cast iron components, and corrosion-resistant plastics extend life in damp or outdoors environments. Look for models with thermal protections and dry-run safeguards.
- Automatic vs. manual: Float switches and automatic controls reduce monitoring. For constant or seasonal pumping, automatic options simplify maintenance.
- Power and efficiency: Higher horsepower often means greater energy consumption. Ensure the electrical requirements match available outlets or circuits, and consider energy-efficient models where possible.
- Installation and accessories: Check inlet/outlet sizes, hose compatibility (brass fittings, standard 3/4″ hoses), and whether adapters or controllers are included or required.
- Application fit: Sump/pond pumps prioritize continuous, sometimes submersible operation; booster pumps emphasize pressure increases in household or irrigation systems; transfer pumps excel at moving water between containers or sites.
- Maintenance: Look for pumps with accessible impellers, easy-clean strainers, and clear instructions for winterization or long-term storage in cold climates.
When selecting a high volume water pump, identify your primary use case—sump drainage, lawn irrigation, or water transfer—and choose a model with the right combination of flow rate, head, durability, and automatic controls. Always follow manufacturer instructions for safe operation and electrical setup.