Water is supplied to pump outlets and pipelines
in the system, especially the pump
Air accumulations at the outlets narrow the transition area of ​​the water and cause a decrease in the capacity. To avoid this negativity
single sphere suction cups are used. The air formed in the system is filled with the suction cup before water and thrown out through the hole in the cover. Then the suction cup is filled with water and lifts the ball up and the holes are closed to ensure tightness.