Description
Drain flat roofs, flooded building floors, and concrete slabs down to ground level. The Tsurumi LSR2.4S Electric Ground Level drainage pump clears standing water puddles down to 0.2-inch depths. A 0.5-horsepower electric motor turns an abrasive-resistant urethane rubber impeller. The bottom suction plate cannot pass solid gravel particles exceeding 0.24-inch diameter.
Solid aluminum alloy forms the motor casing, protected by a resilient synthetic rubber outer casing. A semi-vortex urethane impeller resists abrasive scoring from concrete grit. Dual silicon carbide mechanical seals run inside an oil lifter chamber to survive dry running. The bottom suction plate draws water from ground level without requiring deep sump pits. Top-discharge geometry cools motor windings.
Ground Drainage Hardware Specs
Restoration technicians clear shallow standing water without leaving deep puddles on concrete slabs. The internal oil lifter protects mechanical seals even if the pump runs dry.
- Continuous-duty 0.5-horsepower motor operates on standard single-phase 115-volt utility power
- Semi-vortex urethane impeller delivers 53 GPM while draining water down to 5 millimeters
- Bottom suction orifice draws fluid straight off flat concrete slabs and parking floors
- Internal oil lifter lubricates mechanical seals during shallow low-water conditions
- Silicon carbide mechanical faces resist abrasive wear from suspended silica sand
- Heavy 32-foot rubber power cord includes strain relief to prevent electrical shorts
- Standard 2-inch discharge fitting connects straight to commercial lay-flat hose
Motor Stress Bench Telemetry
Dynamometer testing confirms the motor draws 5.4 Amps across 115-volt lines under a 15-foot dynamic discharge head. Pump output stabilizes at 38 GPM through 50 feet of 2-inch hose. Stator temperature reaches 142°F during extended low-water running. Acoustic telemetry records 56 dBA submerged and 63 dBA in open air.
Jobsite Operation Mechanical Realities
You place this flat pump straight onto wet concrete floors using the top carry handle. The weighted base plate prevents the unit from floating in surging water. Do not pick up or move this machine by the rubber power cable. Yanking the electrical cord pulls wires from internal terminals and causes electrical shocks.
- Inspect the rubber suction cushion plate for trapped leaves before placing on floors
- Check seal chamber lubricating oil clarity through the inspection port once a year
- Rinse the pump volute with fresh water after pumping acidic water or slurry
Commercial Warranty Specifications Manifest
Tsurumi covers this ground drainage pump with a 2-Year limited warranty against manufacturing defects. The factory crate contains the drainage pump, 32-foot power cable, 2-inch discharge adapter, and comprehensive operational guide.
