You have to use acid to lower the pH. Read the guide in my signature below about using muriatic acid. Baking soda is used to raise alk.
I do not understand what you are saying about the CYA test. What kind of kit are you using. Is your CYA test the "disappearing black dot test?" Please explain the procedure you are doing to run that test.
CYA is kind of like sunscreen for your chlorine. Without it, your chlorine is quickly lost to the sun.
You should probably go ahead and post a complete set of current water testing results and tell us what kind of kit you used to obtain them.
I also would like for you to put your pool's information in our pool chart. It will make it easier for us to help you.
Pool Chart Entry FormRegarding posting a new question ------- is it a different topic than this current thread? If so, you must first be logged in. Then, once you are in the correct sub-forum where you want to create a new thread, in the upper left section is a place to click to start a new thread. Try again. (BTW -- There is a practice section of the forum near the bottom of the forum homepage if you want to give it a practice try first.)
Pool Chart Results
Bookmarks