New to Pool School!

Welcome to TFP. It is a wonderful forum for all pool related questions.
Be sure to purchase a recommended test kit - Test Kits Compared
Also read up - Pool Care Basics

Fill out your signature by going to Settings on left and then go to Signature - add the volume of your pool, type (plaster, vinyl, fiberglass), and make and model of pump, filter, heater, etc. All of this helps understand your set up when you have a question.