Let me see if I got that parts list, 2 tubes one that fits in the other, glue, electrical tape, and I guess I'll just use some magnets off the fridge
Wow, that redox test was not very impressive. I think the most interesting part was the fact that they through several pounds of live rock, anemones and zoos in a ten and the redox went up, the rise had no correlation to the tube 'o magnets, but it went up. This was a good test for the benefits of live rock.
The ion exchange resin in Chemi-Pure is really old technology. I have this need to find a deionozing application in some industry that can be scaled down.