You could try to equalize the pressure by warming the buckets and the air inside, in theory this may work. So now that we understand why this is difficult. What is an efficient way to get multiple five gallon buckets un-stuck that doesn't involve taking a long time (20 mins or longer is a long time), and doesn't involve deforming/defacing the buckets?Īs you've probably figured out by now the reason the buckets are so hard to separate is the vacuum, or negative air pressure, that forms when you're trying to pull them apart.īy applying force trying to pull them apart you create more negative pressure making them even harder to pull apart. Now you know my problem, and the methods I've tried, and why they weren't satisfactory. I'm not sure if there are any conventional methods, because this isn't really supposed to happen. It works also, but I avoid it as it deforms the buckets. Getting a narrow steel rod and jamming it between the buckets to let in some air. It works unless the buckets are real tight. Same with the method of rolling the buckets, squashing them a little, rolling them, squashing them again, etc. You can do this for 1/2 hour sometimes to no avail.
Holding the buckets between your knees firmly, and twisting the top one. However, the air pump isn't always in working order, and sometimes I have this problem in places where the folks don't have a compressor. I can get the air compressor, plug it in, wait for it to pump up, find a hose and fittings, put them on, jam the end between the buckets, and blast in some air. Not good if you intend to use the bucket for liquids, like I usually do. If I poke a nail-hole in the bottom of one, it will release the vacuum, and the bucket will come away. Then when I do need them, I can get them apart, but at some expense: Sometimes I have some plastic five gallon buckets stacked up (usually 2 or 3, sometimes 4) for storage, and they slowly sink together. Related to How do I separate 2 drinking glasses that are stuck?, but also quite different.
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