Hello and welcome to TFP! Always get some chlorine in the water right away based on your CYA level to avoid algae, then balance pH. They can be done within a short time of each other anyways, but best to avoid algae for sure.
In addition to what Mr Bruce pointed-out, now looks like it would also be a good time for you to confirm for us how you area testing your water. Also, please add your pool info to your signature by going to the top of the TFP web page (just under the Pool School button) and select "SETTINGS". On the next page look to the left for a menu bar that says, “MY SETTINGS” and go to "EDIT SIGNATURE" to enter your pool and equipment info there. Or you can click EDIT YOUR SIGNATURE. It will help us later. This link may also help you: Pool School - Read This BEFORE You Post.
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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!