When selecting a grinder pump, figuring the lift or elevation, and the horizontal run is necessary for adequate flow. However, there are a couple of other things to consider when choosing a grinder pump.
Will your grinder pump be pumping to the main septic tank on your property or will it be pumping the sewage to the city main. The city main is pressurized and requires a pump the has a higher PSI. Check with your city or county to find out the PSI requirements needed for your pump. If you choose a pump that does not have enough PSI for the pressurized city main, the pump will not have enough power to push the sewage up to the main.
The next thing to consider is the electrical requirements. What is the voltage of your electrical connection? Regular household electricity is (110 - 115) volts. But you might have a different voltage outside. Check to see if it is (200 - 208) volts or (220 - 230) volts.
By following these guidelines you will prevent costly mistakes.
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