Circuit Monitors Pump On/Off Times To Ensure Safe Operation

摘要

In a septic-tank-based sewage system, waste water and toilet wastes from, say, a residence drain into the first compartment of a two-compartment septic tank A grating between the compartments allows just liquid waste to drain into the second compartment. This compartment is pumped out via a float-controlled effluent pump to a septic field, or into a municipal low-pressure sewage line that feeds into a lagoon. If the float isn't properly adjusted, becomes misadjusted, or fails, the pump will come on and stay on until it overheats and seizes up. Or, it can fail to turn on when required.