That's an excellent question that many municipal maintenance crews and facility managers consider regularly. The short answer is: it depends entirely on the specific trash can's construction and materials.
Most modern urban trash cans are actually designed with pressure washing in mind. High-quality commercial bins typically feature heavy-duty plastic polymers, powder-coated steel, or galvanized metal that can withstand moderate pressure washing. Manufacturers understand these containers need regular deep cleaning to maintain hygiene standards in public spaces.
However, there are important considerations. The pressure setting matters significantly - most bins can handle 1500-2000 PSI, but excessive pressure can damage decals, paint finishes, and plastic components over time. The nozzle distance is equally crucial; maintaining at least 12-18 inches from the surface prevents concentrated damage. Temperature also plays a role - using hot water on plastic bins can sometimes cause warping or deformation.
Older or cheaper models might not fare as well. Thin plastic bins can crack under pressure, while rusted metal containers might see their protective coatings compromised. The best approach is to check manufacturer specifications for cleaning recommendations and always start with lower pressure settings, gradually increasing as needed while monitoring for any signs of damage.
Regular maintenance cleaning with appropriate pressure levels actually extends the life of urban trash cans by preventing bacterial growth, eliminating odors, and maintaining their appearance. Just remember that like any municipal equipment, they require thoughtful care rather than aggressive treatment.