This morning I poured 174 oz of bleach into the pool while it was at 3ppm and tested it a bit ago. I ended up doing a Full CL test and TC was 3ppm. I got 2 bottles that had been sitting in my Mom's garage for at least 2 1/2 yrs. And used it the past 3 days, I bet it was no good. Well, I just dumped about 224 oz. of fresh since we are fixing to have a rain storm. I bet it goes up now!