Operation Precautions
- Never run pump dry
- Only use this pump with clean water
- Never use this pump for liquids other than water
- This pump is not intended to move water containing large, non-dissolved solids
- Make certain that all electrical connections have a GFCI (Ground Fault Circuit Interrupter) installed
- Note for in-line applications: Please avoid threading long, straight unsupported pipes to the volute. Unsupported pipes add immense stress to the volute that may compromise the seal once filled with water.
Assembly and Operation Instructions
Models 2, 3, 5, & 7
This pump can be used submersed or inline, both with or without the Venturi Air Intake.
The Venturi Air Intake provides air induction when the airline is connected to the small air intake port. It attaches to the threaded 1/2" FPT intake of the pump volute. Turn until secure; do not over-tighten. Use plumbers Teflon® tape on the threaded pipe fittings. This will aid in assembly and future disassembly.
Attach the Air Muffler to the Air Control Valve using the Air Tube Connector to create the Air Control Assembly. Attach the Air Control Assembly to the Venturi Air Intake Port using the Air Induction Tube.
The Barbed end of the Venturi Tube attaches to 3/4" flexible tubing. It can be secured with a small hose clamp (not supplied) for extra security. The top of the Air Valve must always be above water level to prevent water back flow if power is interrupted. An airline check valve (#33949) can be purchased and installed to prevent back flow of water into the Air Tubes.
The Pipe Thread Volute can be used without the Venturi intake tube assembly either submersed or inline, non-submersed. For inline use, the pump must be primed and should be operated below the water level. A separate inline check valve is strongly recommended to prevent loss of prime if power is interrupted.
The slide-on base plate can be removed and then reattached to any side of the pump that has sliding tracks. With the pump removed, the base is mounted and the pump can then be reattached.
Maintenance/Impeller Replacement
This pump does not require any lubrication or special maintenance. Periodic cleaning of the impeller will maintain pump performance and extend pump life.
It is particularly important to perform impeller cleaning when the pump is in water with high mineral content such as saltwater aquariums. Scale will build up on the ceramic shaft inside the impeller. It can be removed by soaking the impeller in a solution of one part vinegar to (8) eight parts water overnight and rinsing off the calcium deposits.
To access Impeller:
- Completely disconnect pump from power supply.
- Remove hoses and bring pump to a clear work area.
- Remove (4) four screws to remove volute.
- Pull volute straight forward from pump.
- Pull the Impeller out from the chamber.
- Clean Impeller with freshwater or vinegar solution only, never any solvents.
- Reverse steps to reassemble. If rubber O-ring detaches, clean it and press it back around the track on the motor housing.
Models 9.5, 12, & 18
This pump can be used submersed or inline, both with or without the Venturi Air Intake.
The Venturi Intake provides air induction when the airline is connected to the small intake port. It attaches to the threaded 3/4" FPT intake of the Pump Volute. Turn until secure; do not over-tighten. Use plumber's Teflon® tape on threaded pipe fittings. This will aid in assembly and future disassembly.
Attach the Air Muffler to the Air Control Valve using the Air Control Assembly. Attach the Air Control Assembly to the Venturi Intake Port using the Air Induction Tube.
The Barbed end of the Venturi Tube attaches to 1" flexible tubing. It can be secured with a small hose clamp (not supplied) for extra security. The top of the Air Valve must be above water level to prevent water back flow if power is interrupted. An inline Check Valve can be purchased and installed to prevent back flow of water into the Air Tubes.
The Pipe Thread Volute can be used without the Venturi intake tube assembly either submersed or inline (non-submersed). For inline use, the pump must be primed and should be operated below the water level. A separate inline check valve is strongly recommended to prevent loss of prime if power is interrupted.
Maintenance/Impeller Replacement:
This pump does not require any lubrication or special maintenance. Periodically cleaning the Impeller will maintain pump performance and extend pump life. It is particularly important to perform Impeller cleaning when pump is in water with high mineral content such as saltwater aquariums. Scale will build up on the ceramic shaft inside the Impeller. It can be removed by soaking the Impeller in a solution of 1 part vinegar to 8 parts water overnight and rinsing off the calcium deposits.
To access Impeller:
- Completely disconnect pump from power supply.
- Remove hoses and bring pump to a clear work area.
- Remove 6 screws to remove volute.
- Pull volute straight forward from pump.
- Pull the Impeller out from the chamber.
- Clean Impeller with freshwater or vinegar solution only - never any solvents.
- Reverse steps to reassemble. If rubber O-Ring becomes detached, clean it and press it back around the track on the motor housing.
Troubleshooting
| Problem |
Possible Cause |
Solution |
| Pump stops working or runs slowly |
Bad power supply. |
Check all power connections, GFCI, and circuit breakers.
Test using a different power source. |
| Impeller is locked with debris. |
Check if impeller will turn. Disconnect power, remove volute and check if impeller can be turned. If not, perform impeller maintenance. |
| Intake clogged. |
Disconnect power and remove obstruction. |
| Impeller is worn out. |
Replace impeller. |
| Foam cartridge is clogged. |
Remove and rinse in separate container filled with aquarium water. Chlorinated tap water will kill off any helpful bacteria that will have colonized in the foam. Replace if too worn. |
|
Pump will not prime |
Pump design is not self priming |
Position the pump below water level, fill hose with water and restart. |
Air is not
drawn in
|
Tubing kinked |
Straighten out tubing or replace using standard aquarium tubing. |
| Valve closed |
Turn valve know counterclockwise. |
|
Pump submerged too deep |
Elevate pump. Air induction diminishes with increased depth of the pump. Check that the air muffler is completely above water surface. |
General Information
This continuous duty pump is designed for filtration systems and other applications that call for dissolved oxygen mixed into the water column. The Venturi Air Intake draws water into the impeller chamber where it is fractionated to micro-bubbles before it leaves the pump discharge outlet. The pump incorporates a highly efficient magnetic drive motor and matched impeller with a ceramic shaft to provide energy savings while maintaining high output.
This pump can be used submerged or in-line. Note that when used in-line, it should be placed below the water level since it is not self-priming. Never run this pump dry.
| 
 "Supreme Magnetic Drive Pump with Venturi Intake and Air Fractioning Impeller")
