Pop up basin drainer principle

The bouncing pop-up basin drainer is also called a pedal-type water drainer and a push-down water drainer. It is a kind of water trap that can be bounced back to the water storage and drainage through the middle elastic core when pressed by the middle or the lower water cover with the hand or the foot. The type of groundwater device consists of a spring and a specific carbon core structure. If the water pressure is high, the strength of the core may not be able to bounce off the water.