Tsurumi Pump’s HS3.75SL Offers High Volume in a Compact, Portable Package

Both the manual (HS3.75SL) and automatic (HSZ3.75SL) models pump roughly twice as much water as the high head version.
March 13, 2026
2 min read

In many dewatering applications, moving more water requires larger, higher horsepower equipment. The HS3.75SL from Tsurumi Pump is engineered for high-volume performance in a compact, portable package. 

HS Series pumps have long played a role in establishing Tsurumi’s presence in the portable dewatering market. Both the manual (HS3.75SL) and automatic (HSZ3.75SL) models pump roughly twice as much water as the high head version. Tsurumi’s standard HS3.75S can move approximately 62 gallons per minute at 10 feet of head, while the HS3.75SL can deliver roughly 115 gallons per minute at the same head height using the same 1 HP motor. This results in both time and money being saved. 

The HS3.75SL is designed for high volume applications, including residential, commercial, and industrial wastewater sites. This pump was designed to be a reliable solid handling solution, featuring a 3-inch discharge and a 1 HP motor capable of achieving a maximum flow rate of up to 140 gallons per minute. 

The increase in volume is achieved through design features including a larger pump casing and a uniquely shaped impeller. The semi-vortex urethane impeller features a reduced diameter with taller vanes, enabling higher flow rates. A built in-shaft agitator works to suspend solids, allowing the pump to handle sediment-laden water without restricting performance. 

For operators working in environments where high volume dewatering is critical, the HS3.75SL provides an effective alternative to larger, higher-horsepower pumps. 

 

About the Author

Michael Roth

Editor

Michael Roth has covered the equipment rental industry full time for RER since 1989 and has served as the magazine’s editor in chief since 1994. He has nearly 30 years experience as a professional journalist. Roth has visited hundreds of rental centers and industry manufacturers, written hundreds of feature stories for RER and thousands of news stories for the magazine and its electronic newsletter RER Reports. Roth has interviewed leading executives for most of the industry’s largest rental companies and manufacturers as well as hundreds of smaller independent companies. He has visited with and reported on rental companies and manufacturers in Europe, Central America and Asia as well as Mexico, Canada and the United States. Roth was co-founder of RER Reports, the industry’s first weekly newsletter, which began as a fax newsletter in 1996, and later became an online newsletter. Roth has spoken at conventions sponsored by the American Rental Association, Associated Equipment Distributors, California Rental Association and other industry events and has spoken before industry groups in several countries. He lives and works in Los Angeles when he’s not traveling to cover industry events.