How to use the foam Pump?

1. Initial pressing - When we press the pressing head for the first time, the pressing head drives the sub-column to compress the spring together through the connected main column; during the compression of the spring, the outer wall of the piston rubs against the inner wall of the main body, prompting the piston to open the discharge hole of the sub-column; when the piston slides down, the air in the main body is discharged through the already opened discharge hole of the sub-column.

2. Reciprocating multiple pressing - Expel all the air in the main body.

3. Liquid aspiration - Press the pressing head by hand to compress the spring through the main column, sub-column, and piston to discharge the air in the main body, then release the pressing head. The spring moves back (up) due to the loss of pressure. At this time, the piston also moves downward by rubbing the inner wall of the main body, closing the discharge hole of the sub-column; at this time, the liquid storage chamber in the main body forms a vacuum liquid aspiration state, sucking the glass ball upward, and sucking the liquid in the bottle into the liquid storage chamber of the main body through the straw.

4. Liquid storage - Press the pressing head multiple times, and store the liquid in the main body through multiple liquid aspiration until the liquid is full.

5. Foaming - When the liquid storage chamber of the main body is full of liquid, press the button again and the liquid will be sprayed out directly from the nozzle through the discharge hole.