Anybody use a Berkey water filter?
These are highly regarded and it would seem a great way to extend boondocking time. Can treat stream or lake water in fairly large quantities to drinking-water quality. Only issue is they are fairly l...
Forum Discussion
greenrvgreen wrote:
The Red Dye test is a demonstration by makers of carbon-cake filters to show their product in a more favorable light. Ceramic filters that exclude pathogens will still pass red dye (and salt). Your water is safe to drink, but red.
The black filters employ activated charcoal which will trap the red dye. However, water eventually forms paths around the charcoal and pathogens end up in your drinking water. This is why these filters are not approved for water purification, no matter how many times the NSF standards are met by private testing firms. It's not that they don't finely filter the water, it's that the filter is not a reliable barrier over time.
Ah, okay. Thanks.
