That's a great question! Many people assume it must be a huge hassle, but honestly, replacing the liner in a big public or commercial trash bin is a pretty straightforward task if you know the steps. The key is being prepared. First, you'll want to make sure the bin is as empty as possible. For a really full one, you might need to compact the trash down gently or, for city workers, use a collection vehicle to empty it first.
Next, gear up with a pair of sturdy gloves—safety first! Grab a new, heavy-duty liner bag designed for large bins; these are much thicker than kitchen bags. Open it fully and drape it over the edges of the empty bin. The trick is to work the bag down into all the corners and smooth it out so it fits snugly. For very deep bins, sometimes it's easier to climb a small step stool (with care!) to reach inside and adjust the liner properly. Once it's in place, you simply fold the top edges neatly over the rim of the bin, and you're done! The whole process takes just a few minutes. The real difficulty isn't the replacement itself, but rather handling a very heavy, overfilled bin. Regular maintenance makes it an easy job. So, no, it's not difficult at all with the right approach and materials.