Foam Pump Use

Inside the pump of the China Foam Pump(KEXON) is a little mesh screen that mixes the soap with air to produce the foam. The holes are microscopic (79 microns - very tiny!), and can easily get clogged. The manufacturer does not recommend the addition of any solid particle, even if it is under 79 microns, as solid particles tend to clump together, making them too big to pass through the mesh. Micas, pigments and any type of glitter are too big to work in the foamy pump bottles.
If you want to color your liquid soap, use dye approved for cosmetic use. These work similarly to food coloring and do not contain any solid particles big enough to clog the mesh inside the pump.
Usage and Care
Bottles can be refilled and used again and again. The manufacturer has tested the bottle/pump design and found it mechanically works for up to 12,000 pumps per unit. In practical application it may be considerably less, depending on the soap used and the care and environment of the pump.
The pumps are not designed to be used under running water. Use in the shower is not recommended and the bottles should not be placed or washed under running water. Doing so may allow water to seep down the neck and get into the air chamber located beneath the pump.
Do not overfill the bottles. If you actually measure out the right amount of liquid for the bottle size, you'll see that it doesn't actually fill to the very top of the bottle. This is to prevent liquid from getting into the air chamber.
As the pump is used, there is residual liquid on the screen. If the pump is not used frequently, that soap liquid can dry, creating a film on the screen which can ultimately clog the screen making the pump hard to use.
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