Just found this site- lots of great info. New to pools, so i'm going to read through the site this weekend. Tired of pool stores, and want to learn to do everything myself. Is the L-ascorbic acid found at PC NetworRx OK? I really dont know the difference between it and the Ester ascorbic acid. Have any of you guys used this product from there? Also, when I add the ascorbic acid, will it turn water milky? Thanks in advance.