So I am a newbie and had an algae problem. I only had a simple 4 part drop test and chlorine/ph/ta were all fine. I started reading on here and figured high cya was my problem for sure. I bought a test strip which was all I could find at the time for a cya test and thought it showed 100+ so I started making plans to empty at least half my pool. I then took a sample to the evil pool store and I got phosphated. To my surprise my cya is normal at 45 but my phosphates were very high. To give her credit, the evil lady at the pool store guessed correctly that I have dogs that swim and a lot of leaves that I battle often. So I used the phosaway she gladly sold me and then algaecide and slaming 4 hours after putting in the phosaway and instantly my water is crystal clear. Everything is great except I have added liquid chlorine twice now and it disappears very quickly. I have tried adding it at night but the next morning there is almost 0 chlorine. Is the phosaway or algaecide eating my chlorine? What else could it be if all my levels other than chlorine are normal now?