Tubtrugs is now Red Gorilla. They make food grade flexible plastic tubs for farm, garden, kitchen and other uses. They also have recycled black tubs and some accessories like flexible strainers. Here's a blurb for one of the tub sizes they offer:
The Gorilla Tub® Medium is a flexible tub that is built to last. It is perfect for use around the home, in the garden and at the stables. All of the wonderful features mean our flexible tubs really can be used for everything!
The Gorilla Tub® Medium holds almost 7 gallons and is perfectly sized for carrying liquids and is very well suited for bending under sink spouts to act as a plant waterer or cleaning agent container. It also works great for mopping! Food grade certified.
I give this gear 10 out of 10 acorns. Who would think that a flexible bucket is so useful? These things are tough and kind of cute. It's amazing how much weight they can hold. I've had our Medium sized one about 2/3's full of dirt and pinched the handles together to hold it with one hand and it felt rock solid.
The flexibility is nice since you can hold it with one hand or two. Fill it with weeds? Carry with one. Fill it with apples, maybe carry it with two and it flexes around your belly (if needed) as you carry.
We've had ours for about two years and other than normal scratches, it is in perfect shape. We use it about every other day and expect it to last for a few decades. I can't really see how it could fail. We do keep it in a tool shed so I'm not sure how well it holds up to UV light in the long run.
I'm tempted to get one of their strainers. That would probably be a great way to collect root crops and then clean them.
We don't use them to carry water around. 5 gallon buckets are still better for that task.
I give this gear 9 out of 10 acorns. My wife and I use these and find them quite useful. I like how flexible they are and the two handles come together easily for one-handed carrying. I did discover, quite by accident, that they don't hold up to the suns UV rays very well. We accidentally left one outside in the direct sun for maybe a week or so, and it had become brittle and cracked in a couple places when I picked it up.
"Study books and observe nature; if they do not agree, throw away the books." ~ William A. Albrecht
I've never used branded trugs, but I buy very similar ones made from recycled rubber from the builders merchants. They are virtually indestructable!
We use them for carrying concrete, one person each side - they really are that strong! I also use them for rock picking, laundry, hauling compost, anything really. I love that you can carry lighter things in one hand and the same thing is strong enough for the toughest, heaviest jobs. We have some that are ten years old and have been outside in the summer sun and are still as good as new. I have one I drilled holes in the bottom of so I can rinse stuff in it. I think they cost €3.50 each so they are very affordable, too.