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What about the water pump leaves of the homemade fish pond filter?
The difference between a pump and a self-priming external filter bucket Ordinary centrifugal pump,If the water absorbing liquid level is under the impeller,Pre-irrigation should be started.To pump water,The suction pipe inlet needs to be equipped with a bottom valve.When the pump works,The bottom valve causes great hydraulic losses.The self-priming pump does not need irrigation before opening (it still needs irrigation for the first time after installation ),After a short period of operation,By the pump itself,You can suck up the water,Put into normal work.Working principle of self-suction pump: 1. gas-liquid mixing (including internal mixing and external mixing): Due to the special structure of self-suction pump,After the pump stops,There is a certain amount of water in the pump body,After the pump starts again,Due to the rotation of the impeller,Breathe in the air inside the tube,The water is fully mixed and discharged into the gas-water separation chamber,Gas overflow in the upper part of the gas-water sep
