What's inside a lotion pump and how does it work

Tianmi Fang & Yumei Jin

[@srisidvicious]

Good explanation! I was able to make my pump work again once I found the point where it was leaking air

[@heekyet]

Good video animation and explanation. I am surprised that the mechanism is so simple.

[@13byo8]

If it keeps pumping out the liquid from the sealed bottle, how does it manages the possible negative pressure(vacuum) in the bottle? If there is a hole, the liquid may leak during transportation.

[@thinkslow]

JUST WHAT I WAS LOOKING FOR THANKS

[@HolahkuTaigiTWFormosanDiplomat]

How can we totally ignore this delicate design and just throw them away >

[@sergniko]

Спасибо за классное видео!

[@manaskumar7452]

how air comes inside the bottle at volumes evcuated by soap..while bottle is leak proof??

[@user-hh2eq4mh7j]

thanks🙂

[@arejas7687]

tell me more about your dip tube bby

[@THENETESH]

Unstuck my shampoo pump after watching this 👍❤️

[@ranamohin786]

I like

[@manishdeshmukh616]

You should have a clear voice

[@manishdeshmukh616]

Yes

[@HolahkuTaigiTWFormosanDiplomat]

0.0

[@doronkra4304]

it's really difficult to understand your English