How can I test for residual levels of NoChlor solution in my swimming pool water?
The Copper in NoChlor solution is a good indicator of the level of active ingredients in the water. Copper content can be measured by using NoChlor Pooltester. The optimum copper content of the water should be 0.5mg/litre if the level drops to less than this you can add your next dose of NoChlor solution.