Plastic water containers may not be a good idea for storing water.

[mike31154]

I agree that a single article is hardly sufficient evidence to start getting overly concerned. I use a rectangular rubbermaid container for my water change container. Don't think it's considered food safe but that doesn't mean it's necessarily going to leach a deadly amount of toxins in the several days it takes me to mix up a batch & do the change.

I do however use glass wine making car boys for my top up DI water. Not due to any worries re plastic, but more because the form is convenient and they work well with my lo tech air pressure top up system. The drawback with them is weight, they're significantly heavier than a comparably sized plastic container. I have several food grade 55 gallon barrels, one of which I will eventually use to contain my DI water. Right now I'm using it to collect the RODI waste water for use in the garden etc. I'll continue to use the rectangular rubbermaid to mix up my water change batches though.