1. Some faucets somewhere in my home.
2. They’re turned on by moving the arms. It would be nice if there were a way to tell that you’re supposed to pull the arms toward you (rather than away) but at least once you get going it’s readily apparent which faucet(s) are on and to what extent.
3. Both faucets fully on.
4. The faucets in the C-wing second-floor men’s washroom here at the IT campus. There’s no directional information or indication at all.
5. Both faucets fully on, but notice how similar it is to situation #4. You don’t know which one(s) are on and which way to turn them to shut off the flow.
6. Cold on, hot off. If you look from this angle at least you can notice that they screw up and down, and going up opens it further. Makes sense, but it’s really hard to see.
7. Both faucets off again (back to equal height).
Having easy / intuitive faucets is not only a convenience issue; when dealing with hot water it is also a safety issue. When you want colder water but end up with hotter, something isn’t working quite right.