This is outside my apartment building, next to the car park. Is it a connector for a hose of some kind?
Water. Notice the threads are standard hose bib threads (forget what they’re called, it’s not pipe thread, just similar).
It uses a key to operate it, helps prevent average jerks from just turning it on. (These keys are widely available for about $5)
Edit: the little cap is for freeze protection. It’s part of a mechanism to vent water from the last foot of the pipe and bib, so there’s no water in it to freeze when the valve is closed.
They are called sillcock keys. They come in a few different sizes so you’ll often see 4-way tools like this one: https://www.homedepot.com/p/Husky-4-Way-Sillcock-Key-16PL0129/304217572
You can find these spigots on buildings all over the place. Sometimes they are locked behind a panel that you can also open with that same tool. Great for nomads.
Great for nomads.
Isn’t that the water for the building’s sprinkler system? That stuff safe to drink? I figured if there’s no chems there’d at least be mold/mildew.
Hmm, I don’t think so. My understanding is that these spigots are generally plain ol’ tap water for scenarios where you need an outdoor tap, like construction, maintenance, etc. Might vary by locality, but I’ve heard of backpackers/campers/nomads/etc. using these in many places without issue. Never actually done it myself.
Sprinkler systems are typically closed and pressurized, so I don’t think they’d have an outlet as simple as this.
Never heard of a place that these weren’t just water access for stuff like grounds crew or maintenance to have access to water conveniently without the public being able to easily mess with them
There should be a “no stupid question what is this thing” community
There are no stupid questions, only stupid answers.