I got the Berkey water purifier in today, it got delivered to the country store, so that was a good excuse to go to the store. There were lots of people at the store, hanging around the porch, chatting. I showed everyone the filter, they were suitably impressed. Anyhoo, we brought it home, I took it to my neighbor's house to clean it, it requires that you prep the filters, you backwash the filters to get out any loose carbon and such. When the water first came through the filter, it had an exothermic reaction, it got hot! Not too hot to hold, but it was definately hot, it immediately cooled down, I just wasn't expecting it. :)
I packed it back in it's box, took it to my house and set it up, it went together pretty easy, the only mistake I made was not making the nut tight enough on the spigot. That was easy enough to fix, I noticed a little water dripping from it, so I tightened it.
Next I poured a gallon of water in it, then I put a half a packet of grape flavored Koolaid in it, I didn't have food coloring, I figured the Koolaid was the next best thing. It turned the water in the top a nice shade of grape scented purple water. The water immediately started dripping out of the filters, and it was clear, and non-scented. Once half of the water had gone through, I was satisfied both filters were working, so I poured the grape water out, and filled the top container with water. Since I had primed the filters, the water poured through pretty well at first, as the water level went down, the pressure dropped and the water slowed down, that is OK, it's supposed to work that way.
I am very happy with my Berkey water purifier. It is money well spent! I give it 2 thumbs up.