I started prepping last year and now I am happy that I have. Yesterday my county (Johnson Co Kansas) was put under a boil advisory. People scrambled to buy all the water they could. I went downstairs and got one of my 7 gallon Aquatainers. I didnt treat the water when I put it in 6 months ago. When I poured the water there was some "flakes" of something floating in the water. I looked inside the jug, the water was clear but there was some "stuff" on the bottom of the jug. Any suggestions? Looks like I need to buy a berkey also!