Sounds awesome!They are NOT for transport , they are for the next "caterpillar shit in the reservoir" crisis (about 1980, look it up) I don't need to transport water, I have a stream and a rain water catchment system with a 250gal screened but unfiltered tank that can supply the filtered 35 gal indoor tank at my cabin.
BTW "water blocks" most people call them ice cubes!