The Tsurumi HSZ2.4S is a single-phase submersible dewatering pump with an automatic float switch for hands-free operation in demanding environments. Compact yet powerful, it features a built-in agitator to handle water with sand and sediment, making it ideal for residential and commercial sites, river drainage, and more. With a semi-vortex urethane impeller, rugged construction, and patented oil lifter for optimal seal lubrication, the HSZ2.4S ensures durability and long-lasting performance. Its efficient copper-wound motor and built-in thermal protection minimize operating costs while safeguarding against overloading, run-dry conditions, and single-phasing. Includes a 20-ft. cable.

How The Tsurumi HSZ2.4S Compares To The Tsurumi LSC1.4S

Contractors and facility managers choosing between Tsurumi submersible pumps usually face this question: should I get the low-level LSC1.4S for near-complete flat surface drainage, or this HSZ2.4S trash pump for handling debris-laden water automatically?

Here's the honest comparison:

Feature Tsurumi LSC1.4S, Low-Level, 1/2 HP ($613) Tsurumi HSZ2.4S, Trash Pump w/ Agitator, 1/2 HP ($500)
Primary Purpose Draining flat surfaces down to 0.4 in. residual water Pumping water containing sand, solids, and debris
Agitator Not included Built-in shaft-mounted agitator stirs settled debris to prevent clogging
Automatic Operation Not specified as automatic Automatic float switch for hands-free, effortless operation
Impeller Semi-open ductile iron impeller with adjustable wear plate Urethane semi-vortex impeller for durability and performance
Mechanical Seal Dual inside mechanical seal with SiC faces Double inside mechanical seal with SiC faces
Seal Lubrication Not specified Patented oil lifter provides lubrication of the seal faces
Discharge Size Not specified in this comparison 2" angled discharge port
Flow Rate Up to 45 GPM Up to 53 GPM at 5 ft. of head
Cable Length 20 ft. 20 ft.
Best Suited For Flat surface drainage where a sump isn't available and near-complete dryness matters Debris-laden water like sand, sediment, or construction runoff needing automatic operation

Why The Tsurumi HSZ2.4S Is Worth The Investment

This isn't just a submersible pump, it's built with a shaft-mounted agitator and an automatic float switch, giving contractors and facility managers hands-free operation that actively stirs up settled sand and sediment to prevent the clogging that would stall a pump without an agitator.

The HSZ2.4S specifically addresses the needs of contractors and facility managers pumping water contaminated with sand, solids, or debris on construction sites, during disaster remediation, or in river drainage applications where manual monitoring isn't practical.

Built To Keep Working Even When Debris Settles. Unlike pumps without an agitator, which can clog when sand or sediment settles at the bottom, this pump's built-in shaft-mounted agitator actively stirs up settled debris, keeping the pump running consistently instead of stalling out mid-job.

Built For Reliable, Automatic Operation

The automatic float switch activates and deactivates the pump based on water levels, requiring no manual monitoring

The built-in agitator prevents clogging by continuously stirring settled sand and sediment

The angled 2" discharge port provides flexibility in choosing compatible hoses and fittings

Engineered For Long-Term Durability In Harsh Conditions

The urethane semi-vortex impeller delivers maximum durability and consistent pump performance

The double inside mechanical seal with SiC faces provides the longest operational life

The patented oil lifter and V-Ring seal protector work together to protect the mechanical seal from abrasive particles

Real Savings

Automatic float switch operation reduces the labor of manually monitoring and switching the pump on and off

The built-in agitator reduces downtime and service calls from pump clogging in debris-laden water

A 2-year warranty and UL & CSA certification provide added confidence in reliability and compliance

Free shipping and no sales tax through Summit Forge Supply keeps the total cost down compared to buying elsewhere and paying tax and freight separately

The Bottom Line Contractors and facility managers pumping sand, sediment, or debris-laden water can't rely on a standard pump that clogs when solids settle. The Tsurumi HSZ2.4S is built with a shaft-mounted agitator, an automatic float switch, and a durable urethane impeller, so it keeps running through debris-heavy conditions without manual intervention. For anyone dewatering sites contaminated with sand or sediment as a regular part of the job, this is the pump built to keep working through it.

  • Automatic float switch enables hands-free operation, turning the pump on and off based on water levels for effortless convenience
  • Built-in agitator stirs up settled debris, efficiently preventing clogging and ensuring consistent operation in water with sand and sediment
  • Semi-vortex urethane rubber impeller with agitator suspends solids and allows for the efficient pumping of sand and stringy material
  • Durable construction with heavy-duty materials resists wear in harsh environments, providing long-lasting performance
  • Patented oil lifter ensures optimal lubrication of the seal faces, extending operational life and reducing maintenance needs
  • Highly efficient, continuous-duty copper-wound motor with class E insulation minimizes operational costs while delivering reliable performance
  • Built-in thermal protection safeguards against motor failure caused by overloading, accidental run-dry, and single-phasing in three-phase units
  • Compact and lightweight design allows for easy transport and installation in a variety of applications, including residential, commercial sites, and river drainage

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