[Tagging] Is it man_made=water_tap?

[Davidoskky]

> This is why I said "if it's got a user-friendly valve," like if you press a button (and a stream shoots up to your lips to drink), wiggle a stem so water falls down (on your hands to wash), step on a lever (and the flow begins)...yeah, these things have a knob / lever / valve (maybe it rotates, maybe it needs to be "pressed"):  these are water_taps.  You might wash your hands, you might flow gently upwards in an arc for your lips, you might cause a light flow to drip or flow downward.  The "valve" (of many sorts), makes it a "tap."

I'll add to this list all those taps that can be activated without a 
direct manipulation of an object, such as passing your hand in front of 
a light ray which causes the water to start flowing.