New pool owner here. I am completely lost in how to test or what I am doing wrong. I am trying to recover a green pool. Removed a ton of debris and am trying to test the CYA. I have the K-2006 test kit and followed the directions for CYA and the black dot never disappeared. The sample never got cloudy. I pulled water from elbow deep away from any return jet. I'm lost and wondered if anyone can give any insight. I've spent the last hour or so searching the site and haven't found anything about a dot that doesn't disappear.