this post was submitted on 25 Aug 2024
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San Francisco is built around a bay. But no, it wasn't the salt water mist and the paint protecting the bare metal chipping away. It was the dog piss.
Dog piss is a salty slightly acid stream of water. I.e. it is more direct damage than general mist.
You're just mad because they won't let you piss on things anymore.
This is not only real, it's not the first time it happens. It's a well known problem that occurs all over the world wherever humans erect steel post and also have dogs at pets.
Yeah I live nowhere near the sea and this was the cause of a stop sign falling over near a park.
It's socially unacceptable to get mad at people for letting their dog piss everywhere yet when cats do it, it's all hands on deck to eliminate the pest.
The only time a cat ever pissed everywhere was when it was sick, and everywhere was all over my apartment.
We were cat sitting and I’m mildly allergic. It was definitely all hands on deck to clean that piss up, it was suffocatingly stinky.
Apparently people peeing on steel objects is an actual serious structural issue.
Here's a bridge in Sumatra that got hit:
https://www.loosewireblog.com/2004/11/urine_corrosion.html
I see another reference to civil engineering proceedings on a bridge in the Carribbean that faced a similar problem.
We need little zinc doggies to bolt to those spots for a sacrificial anode.
Or if humans are the cause, I guess little zinc dicks would be more appropriate.
Also what “salt water mist?” The Castro is inland, and it’s not like there are huge waves blasting clouds of mist into the air.
Right
plenty of fog, but not a lot of salty spray.
Yes, in the Sunset and other Western beach-adjacent areas, I could see salt aerosols being more of an issue. Dog pee is as low as 6 pH, full of salts, and I would assume on this object in the Castro (literally the innermost SF penninsula) dwarfs the volume contributed by salt aerosols.
So I lived in SF for six years, and it was absolutely the dog piss that did it.
I know this because outside my apartment were two metal utility poles. One, right it outside the door, was the dog piss spot. The other, 20 feet away, was not.
Guess which one corroded and had to be replaced after three years? It was the one that absolutely reeked of dog piss right outside the door.