[jsmith99]

> I’ve no idea what all the valves in the picture below do, but I bet they don’t all open things that relate to each other.

Disappointingly, the picture is just a bank of water meters for an apartment building (possibly in Israel?). It does convey the message though: they are unrelated because each relates to a separate apartment but are all in one place so a inspector can read them from outside the building.

[TeMPOraL]

Reminds me of a similar setup I had in the basement of the apartment building I lived in: there were groups of valves on the water pipes running along the ceiling, and on each handle there was a tag with apartment numbers written on it.

This was essentially use-case organization, because the use case was, "in case of a leak upstream of your in-apartment valve, go to the basement, find the valve that controls the line you're attached to, shut it off, and go inform other people on the same line what's going on".