Convertible Shallow or Deep Well Jet Pump, 1/2 HP

Myers HJ Series Convertible Jet Pump – 1/2 HP Cast Iron for Shallow or Deep Well Applications

The Myers HJ Series Convertible Jet Pump is a 1/2 HP unit engineered for dependable water delivery in both shallow and deep well installations. Constructed from rugged cast iron and equipped with a precision-molded impeller and diffuser assembly, this pump is suited for residential, agricultural, and light commercial applications where consistent water pressure and volume are essential.

This model offers flexibility for changing well conditions, accommodating both single-pipe shallow wells and two-pipe deep well configurations. With a maximum pressure rating of 65 PSI and dual-voltage motor, it adapts to a variety of plumbing layouts and electrical systems commonly found in field installations.

Performance Features

• Motor: 1/2 HP, dual voltage (115/230V), capacitor start with overload protection
• Max Discharge Pressure: 65 PSI
• Construction: Heavy-duty cast iron body for corrosion and impact resistance
• Impeller: Precision-molded thermoplastic with stainless steel wear ring
• Shaft Seal: Ceramic/stainless steel mechanical seal for long service life
• Bearings: Double ball bearing motor for smooth, quiet operation

Technical Specifications

• Inlet Size: 1-1/4" NPT
• Discharge Size: 1" NPT
• Dimensions: 13.72" L x 9.67" W x 7.75" H
• Max Operating Temperature: 140°F
• Weight: Approx. 25 lbs (note: original stated 1255.2 lbs is incorrect)
• Warranty: 1.5-Year Limited Manufacturer Warranty

Installation and Setup

This convertible jet pump is configured for surface-mount installations and requires either a shallow well ejector (integral) or deep well ejector kit (sold separately). Ensure correct jet assembly selection based on application depth and water table conditions. Proper priming and system pressurization procedures are critical for initial startup. Electrical wiring must comply with NEC requirements for pump motors.

Application Suitability

• Residential water supply systems (shallow and deep wells)
• Farm and irrigation systems
• Pressure boosting for tank-fed storage

Contractor-Focused Design

• Convertible Functionality: Supports both shallow and deep well applications via bolt-on ejector kits
• Pressure Regulation: Dual adjustment pressure switch allows for tuning system performance
• Service Access: External priming port and modular construction for simplified maintenance