Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Superior Pump 94705 3/4 HP Cast Iron Shallow Well Jet Pump. Designed for shallow well applications up to 25 feet in depth, this pump is built with durable components and is 100% factory tested to ensure reliability.
Safety Information
Always prioritize safety when installing, operating, or maintaining the pump. Failure to follow safety instructions can result in electric shock, fire, personal injury, or property damage.
- Electrical Safety: Ensure the pump is properly grounded. Always disconnect power before servicing.
- Water Source: This pump is designed for clean water applications. Do not use with corrosive, flammable, or explosive liquids.
- Installation: Follow all local plumbing and electrical codes. Ensure proper ventilation if installed indoors.
- Children and Pets: Keep children and pets away from the pump during operation.
Product Features
- Pumps up to 11.8 gallons per minute at 40psi.
- Rugged cast iron pump body and seal plate for durability.
- Pre-mounted, fully adjustable pressure switch, preset at 20/40 psi.
- Dual voltage motor (115-Volt or 230-Volt) with built-in thermal overload protection.
- 1-1/4 inch NPT suction and 1 inch NPT discharge/drive ports.
- Tough thermoplastic impeller and glass-filled thermoplastic diffuser.
- Suitable for shallow well applications up to 25 feet depth.

Rugged Cast Iron Pump Body, Thermoplastic Diffuser and Impeller: The pump features a durable cast iron body and robust thermoplastic components for efficient water movement.

Adjustable Pressure Switch: A pre-mounted, fully adjustable pressure switch is included, factory preset at 20/40 psi.

Voltage Switch: The pump includes a dual voltage motor with a switch for 115V or 230V operation, factory set for 115V.

Suction and Discharge Ports: Features a 1-1/4 inch NPT suction port and a 1 inch NPT discharge/drive port.

Assembled Reference: This image illustrates a typical setup; the tank, hose, and fittings are not included with the pump purchase.
Specifications
| Brand | Superior Pump |
| Model Number | 94705 |
| Horsepower | 3/4 HP |
| Material | Cast Iron |
| Power Source | Corded Electric |
| Voltage | 115/230 Volts (Dual Voltage) |
| Maximum Flow Rate | 11.8 Gallons Per Minute |
| Maximum Lifting Height | 25 Feet |
| Item Weight | 34 Pounds |
| Product Dimensions | 10.5 x 17.25 x 8 inches |
| Included Components | Jet pump, pressure gauge, Pump Owner's Manual |
Setup and Installation
The Superior Pump 94705 is designed for shallow well applications, meaning it can draw water from depths up to 25 feet. It features a dual voltage motor that can be configured for either 115-Volt or 230-Volt operation, with the factory setting typically at 115V. A pre-mounted, fully adjustable pressure switch is set at 20/40 psi. For proper operation, a pressure tank is required (not included).
Priming the Jet Pump
Priming is the process of removing excess air from the pipe intake by filling it with water to create suction. The intake pipe and pump housing must be completely filled with water for the pump to prime successfully. The amount of water required depends on the depth of the pipe. Continue to fill the pump housing until the water overflows.
Steps to Prime the Pump:
- Remove the screw from the top of the jet pump housing.
- Fill the jet cavity to full capacity with water.
- Reinstall the cap.
- Turn on the power to the jet pump to prime the pump. It may be necessary to repeat these steps multiple times until the pump is successfully primed.
Video: Jet Pump Terminology & How to Prime a Jet Pump - This video explains key terminology and provides a step-by-step guide on how to prime your jet pump for optimal performance.
Operating Instructions
Once properly installed and primed, the pump will automatically maintain water pressure within your system via the pressure switch. The pump will turn on when pressure drops below the lower setting (e.g., 20 psi) and turn off when it reaches the upper setting (e.g., 40 psi).
- Ensure the pump is always supplied with water to prevent dry running, which can cause damage.
- Monitor the pressure gauge to confirm the pump is operating within its intended pressure range.
Maintenance
Regular maintenance ensures the longevity and efficiency of your jet pump.
- Periodic Inspection: Regularly check for leaks, unusual noises, or vibrations. Address any issues promptly.
- Cleanliness: Keep the pump area clean and free from debris.
- Winterization: In cold climates, drain the pump and associated piping before freezing temperatures to prevent damage. Consult a professional if unsure.
- Pressure Tank Check: Periodically check the air pressure in your pressure tank (when the pump is off and system is drained) to ensure it matches the pump's cut-in pressure.
Troubleshooting
If you encounter issues with your pump, consider the following common problems and solutions:
- Pump Runs but No Water: Check if the pump is properly primed. Ensure the well has sufficient water. Inspect for air leaks in the suction line.
- Pump Cycles Frequently: This may indicate a problem with the pressure tank (low air charge, ruptured diaphragm) or a leak in the system.
- Pump Does Not Start: Check electrical connections, circuit breaker, and ensure the voltage switch is set correctly. The thermal overload protector may have tripped; allow it to cool.
- Low Water Pressure: Verify the pressure switch settings. Check for clogs in the intake or discharge lines.
For persistent issues, consult a qualified technician or contact Superior Pump customer support.
Warranty and Support
The Superior Pump 94705 3/4 HP Cast Iron Shallow Well Jet Pump is backed by a 3-year limited warranty. For warranty claims, technical assistance, or further information, please refer to the included Pump Owner's Manual or contact Superior Pump customer service.
Video: Superior Pump - Built to Last - Learn about Superior Pump's commitment to quality and durability in their products.
Video: Superior Pump - About Us - Discover the history and values of Superior Pump, a family-owned and operated company.
Video: Superior Pump Jet Pumps - An overview of the Superior Pump jet pump product line, highlighting various options and features.





