1. Install it on the sewer outlet.
2. Set the switch to the "off" position, that is, the water cannot flow through the sewage pump outlet and the power is cut off.
3. After pressing the "start" button, water begins to flow into the sewage pump.
4. When the pump is operating normally, the sewage pump does not need power.
5. Under normal circumstances, the sewage pump will drain automatically, but if the water level is too low or exceeds the highest water level of the inlet pipe, manual intervention may be required.
6. Note: The sewage pump should avoid direct exposure to sunlight to avoid damage to the pump impeller; the sewage pump should not be placed in a high temperature and high humidity environment.
