I have some aquatainers that I bought from Chinamart. I think they hold 10 gallons or so as well. Paid $10 or so couple of years ago. I had some extra water I had put in one from our water delivery company about 4 months ago. Drank the water earlier this week and it tasted fine. Couldn't tell it had been in the unit. Good luck.
"Up at Camp David, we do skeet shooting all the time."
- Barack Hussein Obama