That's a great question! As someone who's worked with public works departments, I can tell you modern urban trash cans are specifically designed to handle regular power washing. Most city bins are now made from heavy-duty materials like powder-coated steel, reinforced polymer plastics, or stainless steel. These materials resist corrosion, won't rust easily, and can withstand high-pressure water jets typically ranging from 1,500 to 3,000 PSI.
The cleaning process itself is quite systematic. Maintenance crews usually schedule cleanings during off-peak hours. They first empty the bin completely, then pre-rinse to remove loose debris. The power washing follows, often using hot water and sometimes eco-friendly disinfectants. Key design features make this possible: reinforced seams to prevent water intrusion, smooth rounded interiors without corners where grime can stick, and drainage holes at the bottom that allow water to escape quickly.
Some advanced models even have protective coatings that make graffiti removal easier during washing. The real challenge isn't the pressure itself, but rather the frequency—these bins might get deep-cleaned weekly or biweekly in busy areas. Proper maintenance includes checking for wear after washing and ensuring drainage holes remain unclogged. So next time you see a shiny public bin, there's a good chance it recently underwent a thorough power wash treatment designed to keep our shared spaces hygienic without damaging the infrastructure.