Wade the blue containers are 20 gallon containers that are food safe plastic. They have a seal on the lid and handles. I wish I had bought more of them. I use them for primaries that will hold about 150 pounds of grapes each. I am going to try drilling one lid and see if I can fit an airlock on it. I will try bulk aging in one to see how it goes. I will bring the wine level up to about a half inch below the lip, fill the headspace with gas and put the airlock in. I will try it with a white that won't need to be in it too long. Next year I will get some of the tubes like Al got- a few 50's and a few 100's.
I know the area isn't fancy, but it is functional. There is a sloped concrete floor and drain and a concrete stub wall all around. Cleanup is a breeze. I will eventually fancy it up some more and get the electricity going in there again, but I disconnected it years ago. For now I just run a heavy leadcord in for small amounts of power.