Get some bleach in there or your pool is gonna turn green! Add one jug of bleach by pouring it slowly around the perimeter of the pool as far from the sides of the pool as you can reach. Stir it around the best you can with a clean broom or oar or something. (Also, until you get some CYA in there, remember that you are gonna have to test and add bleach a couple of times a day to maintain a chlorine reading. Once the CYA dissolves, then you will be able to test and dose with bleach in the evenings only.)