Honda 1/2 HP Stainless Steel Submersible Water Pump

Description

Corrosive cellar sumps and chemical runoff tanks chew through painted cast-iron pumps fast. The Honda 1/2 HP Stainless Steel submersible pump resists acidic water corrosion while delivering 66 GPM with a maximum head of 33 feet. Running on 115-Volt electric current, it draws 6.0 Amps. The stainless casing dents if dropped against rough stone pit walls.

Honda fabricates the outer motor casing, base strainer, and internal motor shaft from 304 stainless steel to defeat harsh chemical corrosion. A glass-reinforced thermoplastic vortex impeller creates centrifugal lift without demanding tight internal clearances. Dual mechanical shaft seals run in an isolated oil reservoir, pairing carbon-ceramic upper faces with silicon carbide lower faces. This combination prevents liquid intrusion into the motor winding cavity during continuous immersion.

Field Hardware Performance Matrix

Basement dewatering and light commercial drainage demand corrosion resistance and continuous unattended operation. This stainless submersible platform uses high-grade metallurgy to withstand aggressive water chemistry without structural breakdown.

• 1/2 HP continuous-duty electric motor features internal thermal overload protection against locked rotor overheating.
• 304 stainless steel motor housing resists acidic cellar seepage and mild agricultural chemical runoff.
• Vortex thermoplastic impeller passes spherical solids up to 0.4 inches without binding the drive shaft.
• Dual mechanical face seals with silicon carbide lower surfaces prevent pit grit from reaching motor bearings.
• 20-foot grounded power cord provides ample reach to weather-protected ground fault circuit interrupter outlets.
• 1.5-inch female NPT discharge port connects to rigid PVC pipe or flexible discharge hose adapters.
• Built-in float switch starts pumping at 12 inches of liquid depth and stops at 4 inches.

Dyno Load Realities Heat Data

Bench testing under a 15-foot dynamic head reveals continuous current draw of 5.8 Amps at 115 Volts while pumping 48 GPM. Motor housing surface temperature stabilizes at 110°F in 68°F basin fluid. Running in static 90°F water pushes skin temperature to 132°F, well below the 190°F internal thermal switch limit. Acoustic emissions check in at 48 dBA at 3 feet distance, making operation near silent beneath liquid. Flow drops to zero GPM when discharge head reaches 34 feet.

Field Service Application Limits

Weighing 16 pounds, this pump drops into narrow 11-inch sump basins without strain. Do not use this pump on heavy construction excavation sites or muddy trenches packed with 1-inch gravel. Heavy gravel wedges into the intake screen, burns out the motor windings, and voids the factory guarantee.

• Clear hair, lint, and debris off the float switch mechanism every 6 months to ensure free float movement.
• Rinse the stainless base screen with high-pressure garden hose water between seasonal basin cleanouts.
• Test the ground-fault circuit interrupter outlet every 90 days to verify proper electrical protection.

Commercial Warranty Package Inventory

Honda covers this submersible water pump with a 2-Year limited warranty against manufacturing defects in commercial service. The retail box includes the WSP53AA pump unit, an adjustable mechanical float switch with tether clamp, a 1.5-inch discharge adapter, and an English-Spanish owner manual with electrical wiring schematics.