I know this may sound silly, but I'm in the process of making my own wc system. Wondering if a magnum 350 Here
http://www.marineland.com/products/c...con_magnum.asp
will work. A lot of this forum seems to be over my head, but would be grateful for any ideas. Also wanted to use the evaporator from an air conditioner with fans to exchange heat.... Thanks, and great forum!