Model # MD500T
MD500T-G
MD500T-V
USE AND CARE GUIDE
SUBMERSIBLE SEWAGE PUMP
MD500T-G SHOWN
DESCRIPTION
This submersible sewage pump is designed for pumping sewage, effluent, wastewater or flooded water with up
to two-inch solids. The pump is built with overload thermal protections and auto reset. Ball bearings on motor
shafts never need lubrication.
The MD500T is equipped with a 10’ 3-prong grounding-type power cord pump is a manual pump, a switching
device is required.
The MD500T-G is equipped with a 10’ 3-prong grounding-type power cord and tethered float switch.
The MD500T-V is equipped with a 10’ 3-prong grounding-type power cord and vertical float switch.
The MD500T-G and MD500T-V pumps operate automatically.
This pump has not been tested or approved for use in swimming pools or in salt-water marine areas. It is also
not engineered to be run continuously as a “fountain” or “waterfall” pump.
Warning
Do not pump flammable or explosive liquids such as oil, gasoline, kerosene, ethanol, etc. Do not
use in the presence of flammable or explosive vapors. Using this pump with or near flammable
liquids can cause explosion or fire, resulting in serious personal injury or death and/or property
damage.
SPECIFICATIONS
Power supply required ................................................................................. 115V, 60 HZ
Water temperature range ............................................................................ Max.190°F (88°C)
Individual branch circuit required ................................................................ 15 Amp minimum
Discharge Connection ................................................................................. 2” FNPT
Motor duty ................................................................................................... Continuous
Power cord .................................................................................................. SJTW 18AWG/3C, 10ft
NOTICE: This unit is not designed to be used to pump salt water or brine! Use with salt water or brine
will void warranty.
CONSTRUCTION
Motor housing ..................................................................................... Cast Iron
Motor cap ............................................................................................ Cast Iron
Volute .................................................................................................. Cast Iron
Impeller ............................................................................................... Reinforced thermoplastic vortex
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SAFETY INSTRUCTIONS
Please read and understand this entire manual before attempting to assemble, operate or install the product.
Failure to comply with instructions and designed operation of this system may void warranty. ATTEMPTING TO
USE A DAMAGED PUMP can result in personal injury or death!
Safety Precautions
1. Know the pump applications, limitations, and potential hazards.
2. Do not lift pump by power cord or switch cord.
3. Do not touch an operating motor housing. The motor is designed to operate at high temperatures.
4. Do not disassemble the motor housing. Motor has been filled at the factory with special oil. In normal service,
motor should not need oiling. The motor has NO repairable internal parts, and disassembling it may cause
oil leakage or dangerous electrical wiring issues.
5. Make certain the electrical power source is adequate for the requirements of the pump.
6. ALWAYS disconnect the power to the pump before servicing.
7. Release all pressure within system before servicing any component.
8. Drain all water from system before servicing.
9. Secure discharge line before starting pump. An unsecured discharge line will whip, possibly causing
personal injury and/or property damage.
10. Secure the pump on a solid base to keep the pump vertical and above mud and sand during operation to
maximize pumping efficiency and prevent clogging and premature pump failure.
11. Check that all pipe connections are tight to minimize leaks.
12. Connect the pump DIRECTLY to a grounded, GFCI outlet.
13. Extension cords may not deliver sufficient voltage to the pump motor. Extension cords present a life
threatening safety hazard if the insulation becomes damaged or the connection ends fall into water.
14. Make certain the electrical circuit to the pump is protected by a 15 Amp or larger fuse or circuit breaker.
15. Periodically inspect the pump and system components. Perform routine maintenance as required. Do
not handle pump or pump motor with wet hands or when standing on wet or damp surface, or in water.
16. Wear safety glasses at all times when working with pumps.
17. Follow all electrical and safety codes, particularly the Canadian Electrical Code, and local codes and
ordinances.
18. This unit is designed only for use on 115 volts (single phase), 60 Hz, and is equipped with an approved
3-conductor cord and 3-prong grounded plug. DO NOT REMOVE THE GROUND PIN UNDER ANY
CIRCUMSTANCES. The 3-prong plug must be directly inserted into a properly installed and grounded
3-prong, grounding-type receptacle. Do not use this pump with a 2-prong wall outlet. Replace the
2-prong outlet with a properly grounded 3-prong receptacle (a GFCI outlet) installed in accordance with
the Canadian Electrical Code and local codes and ordinances. All wiring should be performed by a
qualified electrician.
19. Protect the electrical cord from sharp objects, hot surfaces, oil, and chemicals. Avoid kinking the cord. Do
not use damaged or worn cords.
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