The Multiquip QP303H Gasoline-Powered Centrifugal Pump is an industry-leading semi-trash pump engineered to deliver powerful, reliable, and portable water movement for construction, municipal, agricultural, and landscaping professionals. Its robust specifications, ease of use, and proven Honda engine make it the pump of choice for tackling jobs involving clear water, dirty water with some solids, and site dewatering—offering unmatched value, durability, and performance in the 3-inch portable centrifugal pump class.

Product Overview

Built around a legendary Honda GX160 4.8HP gasoline engine, the Multiquip QP303H excels in applications where high flows and moderate solids-handling are needed. It is specifically designed for dewatering construction sites, draining excavations, transferring water in irrigation systems, supplying water for dust suppression, pond and pool draining, and quick flood response. Its tough aluminum pump body and cast iron wear parts deliver high performance while ensuring lightweight portability and exceptional service life.

Key Features

• 3-Inch Suction/Discharge Ports: Moves large volumes of water quickly and is compatible with common hoses and fittings used on professional sites.

• Maximum Flow Rate: Pumps up to 245 gallons per minute (GPM), enabling rapid dewatering or transfer and increasing jobsite productivity.

• High Maximum Head: Delivers water up to 105 feet vertically, making it ideal for multi-story site drainage, irrigation, and long hose runs.

• Solids Handling: Designed as a semi-trash pump, it easily passes solids up to 0.75 inches in diameter, including mud, sand, and small gravel—reducing clogging during tough drainage jobs.

• 180-Degree Rotatable Discharge Port: Lets users orient discharge hose as needed for tight jobsites or tricky setups; enhances efficiency and reduces hose kinking.

• Sure-Start Honda Engine: The 4.8 HP OHV engine is known for its reliability, fast cold-weather starts, long service intervals, and fuel efficiency. EPA/CARB certified for use in all 50 states.

• Low Oil Alert: Built-in sensor automatically shuts off the engine if oil drops to unsafe levels, enhancing operational safety and preventing damage.

• Self-Priming (Wet): Easy, quick starts with minimal maintenance—no complex priming procedures.

• Abrasion-Resistant Construction: Aluminum pump housing with cast iron impeller, volute, and fittings balance lightweight design with rugged, long-term durability.

• Heavy-Duty Tubular Roll Cage: Full wrap-around steel frame protects engine and pump from jobsite impacts and makes hand-carrying or loading into trucks easy.

• Optional Wheel Kit: For ultimate portability on large sites or when moving from truck to trench all day long (part# UWK).

• Mechanical Seal: Silicon carbide/tungsten for long wear life and resistance to grit-laden water.

Technical Specifications

Typical Applications

• Construction Dewatering: Pumping accumulated water from foundations, footings, trenches, or utility vaults.

• Municipal & Utility: Emergency water transfer, stormwater overflows, sewer bypass, and hydrant filling.

• Agricultural Irrigation: Moving water from ponds, streams, or tanks to crops or livestock watering points.

• Landscaping & Pool Draining: Quickly empties ponds, pools, or irrigation ditches.

• Flood Response & Disaster Recovery: Fast, reliable water removal after storms or water main breaks.

Performance & Operational Benefits

• Portability & Quick Setup: At under 80 lb and featuring a compact roll frame, a single person can transport, deploy, and service the QP303H almost anywhere on site.

• Outstanding Flow & Head: The combination of high GPM and substantial head pressure delivers productivity on large and small jobs—ideal for elevation challenges or long hose runs.

• Versatile Solids Handling: Passes up to 0.75” solids for muddy and dirty water jobs—superior to clear water pumps and less likely to clog than light-duty models.

• Reliable Starts & Easy Maintenance: Honda GX-series engines are globally recognized for long life, easy starting, and accessible maintenance. Low oil shutoff and robust fuel design prevent costly downtime.

• Field-Proven Endurance: Hundreds of contractors praise the QP303H’s longevity under heavy use and tough site conditions, minimizing repairs and replacement costs.

User Reviews & Reputation

• Highly Recommended: Users consistently rate the QP303H as “tough and reliable,” with many citing years of regular use, low maintenance, and dependability in bad weather or emergency calls.

• Value for Money: Positive feedback centers around robust build quality at a reasonable price and the strong after-sales support from Multiquip and Honda networks.

• Versatile & Problem-Solving: Contractors, landscapers, and property managers emphasize how the high GPM and solids-handling save hours and labor on every drainage task.

• Low-Noise & Fuel Efficiency: The Honda GX160 remains relatively quiet for a worksite pump and runs for several hours on one tank at normal operating speeds.

Best Practices & Maintenance

• Daily: Check engine oil, air cleaner, and fuel before use; drain and flush after dirty water jobs.

• After Heavy Use: Inspect strainer, impeller, and volute for clogs/wear.

• Store tank empty for long-term storage. Cover pump and motor to prevent debris ingress.

• Start dry every few weeks off-season to keep seals supple and fuel fresh.

• Use correct hoses and clamps to prevent leaks or loss of suction.

Frequently Asked Questions

Q: Does the QP303H require priming?
A: Yes, as with all centrifugal pumps, fill the pump body with water before first start (“wet prime”).

Q: Can it be used for potable water?
A: No, it’s designed for non-potable, construction-grade applications.

Q: Can you run the QP303H dry?
A: Avoid extended dry runs! The mechanical seal is protected for short periods but designed for running immersed.

Q: Is it easy to service?
A: Yes, Honda engines are supported nationwide, and the pump internals are accessible for cleanout/replacement.

Conclusion

The Multiquip QP303H Gasoline-Powered Centrifugal Pump defines portable pumping excellence—combining elite Honda power, rugged Multiquip design, high-flow semi-trash performance, and convenient size for professionals who need water moving, fast and reliably, every time.