Put your Berkey to the test! Learn how to do a Berkey Red Dye Test to ensure your filters are working optimally, or to see if the filters need to be replaced. The Bundle Sale is BACK! Get it here: https://www.berkeyfilters.com/pages/bundle-and-save?a_aid=5b2cf1884101a&a_bid=a6054289 (We have the Royal Berkey for our family of 7.) Some links in this post are affiliate links, which means I make a small commission at no extra cost to you. :) Berkey water filter review- https://www.youtube.com/watch