I'm getting the raft rigged permanently (at least for now
I bought two of these 2.5 gallon Scepter military water containers
At $21.50 (and $28.50 for the 5-gallon) with about $30 in shipping for two, they're not cheap, but they'll certainly outlast me! I also bought an extra cap that I'm going to drill and install a lever faucet
. Also a high quality item.
Near as I can tell (from the Scepter website), these jugs are only available at two sources for civilians and Scepter confirmed that they are BPA free.
If you're needing new containers, I'd suggest organizing a group buy to cut down on the shipping. If you're a boating supplier, I'd suggest you look into stocking these containers.
I have no affiliation with any vendor, supplier, race, creed, species, etc., etc.