I need some thoughts here. I figure Jerry will end up providing sound advice, but I like to hear what everyone says.

For water storage I was thinking:

I get the large bottle of simply-orange orange juice from King Soopers. The plastic bottle is a much heavier duty bottle than the milk-gallon bottles. I have the ability to store lots of these rather than large drums.

After I clean these out is it okay to store water in them just putting the cap back on hand tight or do they need to be sealed better in someway?