Water preserver.

[Nemesis]

I might be able to offer bit more to this thread, about a month+ ago I changed over my stored water, these were 220litre brown food grade butts.

The water had been stored in these for 3 years just over and not disturbed at all, on inspection the water was very clean and at the bottom of the barrel there was a very tiny amount of a white powder almost chalky this would have weighed less the half a gram if all was collected, not much at all. (no idea what it was)

On first taste it was like drinking air from glass, like nothing.

After doing the shake which is recommended to re oxygenates the water, it was water taste again and no ill effects 3 of us drank a litre each, there was no need to filter or boil.