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Mapping 9 San Francisco Locations Where the Walls Pee Back

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In an extremely narrow (but also awesomely prankish) victory against public urinators, the Department of Public Works has retaliated by painting a total of nine walls around San Francisco with a coating of paint that pees back, sending anything, er, squirted at it right back onto the legs of the perp himself. Though it sounds like something that DPW emailed itself late one night from BoingBoing, it's actually a coating technology that comes from Florida—of course—by way of Hamburg, where it met with success discouraging drunken revelers who seek relief in alleyways. The paint, known as Ultra-Ever Dry, works by altering the surface texture of the wall, forming patterns of geometric shapes whose pointiness sends water-based liquids shooting back toward the source, as the San Francisco Chronicle explains.


The nine walls, concentrated around the Mission and SoMa, with one stop in Chinatown and the Stockton Street Tunnel, are part of a pilot program to see how well the coating works as a deterrent. Ultra-Ever Dry costs a few hundred dollars per wall, which sounds like a lot, until you start to tally up the cost of sending out crews to steam-clean pee. According to the Chronicle, DPW has fielded 375 requests to remove urine only since January, accounting for 5 percent of all the requests it receives. For the pilot, crews will still have to go out in search of incidents, however.

"We will send people to see, visually, if there are any wet signs to indicate urination has happened," DPW director Mohammed Nuru told the Chronicle. "We will also use our natural nose to smell and see if urine is there."

If the coating is a success, the program may be extended. But in the meantime, the city's plein air ... devotees will only have about 10,999 other places to go.


· Department of Public Works to Test Wall Paint That Pees Back [Curbed SF]
· Pee On These SF Walls? Be Prepared for Them to Pee Back [SF Chronicle]

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1. 98 Jack London Alley (Varney Pl Side)

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98 Jack London Alley
San Francisco, CA 94107

Don't even think about heeding the call of the wild.

2. 496-498 Natoma St

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498 Natoma Street
San Francisco, CA 94103

Let's keep this wall monochrome, shall we?

3. 145 Ninth St (Minna St Side)

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9th Street & Minna Street
San Francisco, CA 94103

Despite not being massive cinemaplexes, independent movie theaters are known to have bathrooms.

4. 121 Ninth St (Garage Door)

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121 9th Street
San Francisco, CA 94103

That "P" with a line through it should be hint enough.

5. Stockton St Tunnel Stairwells

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Stockton Street Tunnel
San Francisco, CA 94108

Contributing to the odorousness of an enclosed space is in no way a smooth move.

6. 890 Jackson St (Adele Ct Side)

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890 Jackson Street
San Francisco, CA 94133

This being a medical office, there should be plenty of opportunities to aim for a cup, ahem, inside.

7. 16th & Mission St BART Plaza (SW Corner)

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16th St. Mission BART Station, 2000 Mission Street
San Francisco, CA 94110

Serious question: could DPW's aggro paint somehow incentivize people to use the actual public toilet on the premises?

8. Osage St (Between 24th and 25th Sts)

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24th Street & Osage Street
San Francisco, CA 94110

Graffiti whizzes only, please.

9. 3487 17th St (Garage and Side Door)

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3487 17th Street
San Francisco, CA 94110

Yeah, that lovely teal color IS like a waterfall. However, just. don't.

1. 98 Jack London Alley (Varney Pl Side)

98 Jack London Alley, San Francisco, CA 94107

Don't even think about heeding the call of the wild.

98 Jack London Alley
San Francisco, CA 94107

2. 496-498 Natoma St

498 Natoma Street, San Francisco, CA 94103

Let's keep this wall monochrome, shall we?

498 Natoma Street
San Francisco, CA 94103

3. 145 Ninth St (Minna St Side)

9th Street & Minna Street, San Francisco, CA 94103

Despite not being massive cinemaplexes, independent movie theaters are known to have bathrooms.

9th Street & Minna Street
San Francisco, CA 94103

4. 121 Ninth St (Garage Door)

121 9th Street, San Francisco, CA 94103

That "P" with a line through it should be hint enough.

121 9th Street
San Francisco, CA 94103

5. Stockton St Tunnel Stairwells

Stockton Street Tunnel, San Francisco, CA 94108

Contributing to the odorousness of an enclosed space is in no way a smooth move.

Stockton Street Tunnel
San Francisco, CA 94108

6. 890 Jackson St (Adele Ct Side)

890 Jackson Street, San Francisco, CA 94133

This being a medical office, there should be plenty of opportunities to aim for a cup, ahem, inside.

890 Jackson Street
San Francisco, CA 94133

7. 16th & Mission St BART Plaza (SW Corner)

16th St. Mission BART Station, 2000 Mission Street, San Francisco, CA 94110

Serious question: could DPW's aggro paint somehow incentivize people to use the actual public toilet on the premises?

16th St. Mission BART Station, 2000 Mission Street
San Francisco, CA 94110

8. Osage St (Between 24th and 25th Sts)

24th Street & Osage Street, San Francisco, CA 94110

Graffiti whizzes only, please.

24th Street & Osage Street
San Francisco, CA 94110

9. 3487 17th St (Garage and Side Door)

3487 17th Street, San Francisco, CA 94110

Yeah, that lovely teal color IS like a waterfall. However, just. don't.

3487 17th Street
San Francisco, CA 94110