I'm wondering what I've done wrong. I just bought the 1.5 gallon copycad kit. I mixed the solution with the correct water and then used it successfully on 8 very small clips, zinc plating them with a 1/2 teaspoon of brightener added to the solution. The more I plated, the less bright and shinny the parts are. I tried again today with poor results. I'm hanging the parts on copper wires across a copper pipe above the bucket. I'm running a small aquarium pump. Yesterday, the zinc plating on the copper wire was very bright and shiny. Today, it's dull, dark grey. Changing the current on the part has no effect. I've read this has happened to others and hope there's a fix for this solution to start plating the zinc on the parts correctly again?