I'm struggling with accurate CYA levels right now. At the moment I can't afford a new test kit, so I'm using AquaChek strips along with taking to local pool store. Over the past month, I've been struggling with the chlorine disappearing at SLAM levels within hours of adding. Upon finding troublefreepool figured out that my CYA level was way too high for my 20×40 pool, so I'm not using tablets with stabilizer right now. Long story short, I lowered the CYA and it is much better now. However, now my straps show low CYA, below 30, but the pool store result today was 59, which was exactly the same as my previous test there a few days ago before partially draining and adding fresh water. My strips were showing between 90-100 before this. So, I trust them more than my local pool store.
Is there anyone out there with experience with these straps? I'm thinking my CYA level is more like 10-20, but not way to know. My goal is between 35-40.
Is there anyone out there with experience with these straps? I'm thinking my CYA level is more like 10-20, but not way to know. My goal is between 35-40.