I got some on ebay that were terrible quality. They dripped constantly and one even broke in half while I was screwing it in. I got on QC supply and got more and was happy with the quality. The is the waterer I made. I plan on wrapping it in heat rope ( http://www.bigappleherp.com/Big-Apple-Flexible-Heat-Ropes ) in the winter to keep the water flowing. Here is a pic of the one I made. It has a sewer clean out on the top to keep things from falling in it and two small holes drilled up top to let air in. It's made from 4" pvc pipe and is 4ft long so it holds a lot of water.
