My last time to write in was regarding not being able to keep my chlorine levels up. I finally came to the conclusion that the problem was low CYA level. I adjusted that and I am still having trouble.
I took a sample to the pool store yesterday (only because my CYA testing tube has disappeared so I can't check the level). This was their findings: FC=10 (s/b 1-5ppm) TC=10 CYA=80 TA=80 pH=7.7 He asked if I had just shocked the pool because the the level was so high.
When I did the chlorine test here (I have the TF-100) the level was 4 as it has been for several days even though I am adding 64-96oz. of bleach every other day.
Could there be a problem with the either the R-0870 powder or the R-0871 liquid? Thank you!