Cleaning a really grimy public waste bin isn't fun, but it's an important task for hygiene. Here's a natural, practical approach I'd take based on experience.
First, gear up. This is the non-negotiable part. Put on heavy-duty rubber gloves, safety glasses if it's splattery, and old clothes you don't mind ruining. A mask helps with the smell.
Gather your supplies: a sturdy scrub brush, a hose or buckets of water, a biodegradable degreasing dish soap, white vinegar or a bleach-based disinfectant (check local regulations for approved cleaners in public spaces), and plenty of heavy-duty trash bags.
Start by emptying it completely. Tie off the full bag and set it aside for proper disposal. If there's stuck-on debris, use a putty knife or a stick to scrape it loose into a new bag.
Now for the wash. Mix hot water with a generous amount of dish soap. Using your brush, scrub the entire interior and exterior, focusing on crusty areas and the rim where grime builds up. A hose makes rinsing much easier. If you only have buckets, pour clean water to rinse thoroughly.
Disinfection is key. For a bleach solution, mix 1/2 cup of household bleach with one gallon of water. For a vinegar alternative, use undiluted white vinegar in a spray bottle. Apply your chosen disinfectant to all surfaces, inside and out. Let it sit for at least 5-10 minutes to kill germs—this contact time is crucial.
Give it one final rinse with clean water to remove any cleaning residue. Leave the bin upside down or open to air dry completely in the sun if possible before putting in a new liner. It's that last dry step that prevents new gunk from sticking right away.
Dispose of your gloves and wash your own hands and arms thoroughly afterward. It's a dirty job, but doing it right makes a big difference for everyone.