I was at my LHBS this last weekend, looking for a kit to convert a cooler. I talked to one of the people working there, asking if their kit would fit my cooler (it was a SS braid and a bulkhead. It looked right, just awful small). He said it would if it was a round cooler, but the square one I had wouldn't work right, it would channel, and it would be just terrible. He then proceeded to draw me a diagram on how I could build a drain thingymabob out of PVC or copper. The whole time he was doing that, I kept thinking "but Denny says..." I ended up not buying the kit and walking out with only the latest issue of Zymurgy. I totally guffawed when I saw this article in it. I need to go back tell him to RTFM!