This is my first tippy tap: I don’t understand foot levers, but it works anyway. I put one of my homemade soaps into a mesh bag and hung the bag. The foot lever of a tippy tap means that you don’t have to touch a dirty handle when you wash your hands. It’s more sanitary.
The fact that this is already working — without my begging someone for help — is delighting me.
I rapidly translated the directions into Esperanto, on the chance that it will help someone. And the place I saw it is http://www.tippytap.org/build-a-tippy-tap-manual. And yeah, I filled out their contact form and gave them a link to the translation. (Se iu volas kontroli mian rapidan tradukon, dankon!)
Tippy tips: there is a hole in the jug where water pours out. A 2nd hole on the other side is for air flow, so water will come out. (Like the two holes in a can of evaporated milk.)
Make sure you put the pour hole off-center. So it won’t pour down the string.