Welcome to TFP! The link below is a great starting point with fresh water. Of course having your proper test kit is exceptionally important. If you don't already have a TF-100/Pro-Series or Taylor K-2006C test kit, that should be a priority. IMO, the TF-Series products are your better option, just be sure to have one of those. Whenever you have a question, just ask.
Welcome to TFP! For a wealth of pool care information please check out our free Pool School. If you are in need of specific help then we encourage you to Register and ask us here in the forum!