Description
Drain commercial septic dosing tanks, elevator pits, and flooded basement sumps fast. The K2 Pumps CONTRACTOR SERIES 1 HP manual effluent pump clears high-head wastewater without motor strain. A 1.0-horsepower oil-filled capacitor-start motor powers a vortex impeller. The manual design lacks an automatic float switch, requiring operator presence during pumping cycles.
Heavy cast-iron forms the motor housing, base volute, and pump head to resist corrosive wastewater acids. The oil-filled 1.0-horsepower motor transfers heat straight into the surrounding fluid reservoir. A non-clogging thermoplastic vortex impeller passes spherical solids up to 0.75-inch diameter. Silicon carbide mechanical shaft seals block moisture intrusion into the motor chamber. Stainless steel fasteners prevent rust seizure.
Heavy Effluent Mechanical Features
Plumbing contractors drain septic dosing chambers and flooded crawl spaces with commercial reliability. Heavy cast-iron construction prevents pump tip-overs in turbulent water pits.
- Continuous-duty 1.0-horsepower motor operates on standard single-phase 115-volt utility power
- Non-clogging vortex impeller passes solids up to 0.75-inch diameter without jamming
- Heavy cast-iron pump housing dissipates motor heat and resists wastewater corrosion
- Silicon carbide mechanical seals block water entry to protect motor stator windings
- Continuous-duty split capacitor design provides high starting torque under water loads
- Tough 20-foot water-resistant power cord allows deep basin electrical connections
- Standard 2-inch NPT discharge fitting accepts rigid PVC wastewater plumbing lines
Hydrodynamic Dyno Load Telemetry
Dynamometer bench testing demonstrates the motor draws 11.2 Amps on 115-volt lines under a 30-foot dynamic head. Effluent discharge measures 88 GPM through a 2-inch PVC discharge pipe. Internal oil bath temperature reaches 138°F after 2 continuous hours of effluent pumping. Sound meters record 55 dBA submerged and 63 dBA in open air.
Operational Boundaries Field Realities
You lower this heavy cast pump into basins using a rope hitched to the top steel handle. The wide iron base stays flat on silt-covered sump floors. Do not run this manual pump dry after emptying the pit. Operating without liquid immersion removes motor cooling and damages the mechanical shaft seal.
- Inspect the suction intake opening for string or rags before dropping into pits
- Test motor electrical insulation resistance with a meter before permanent basin placement
- Clean exterior cast-iron surfaces with fresh water after septic chamber service
Commercial Warranty Specifications Manifest
K2 Pumps covers this contractor pump with a 3-Year limited warranty. The carton includes the cast-iron manual effluent pump, 20-foot power cord, 2-inch discharge adapter, and complete plumbing installation instructions.




