In a matter of three weeks I went from CYA of 45 to 20, even at 20 I am able to see faded black dot not completely disappear like it use to.
I don't see any extra chlorine demand, I add around 40 to 50 oz of 8.25% bleach every 24 hours. Can I use pucks to increase CYA to 50? is CYA testing agents from TF 100 may be old(Aug 2013)?
I don't see any extra chlorine demand, I add around 40 to 50 oz of 8.25% bleach every 24 hours. Can I use pucks to increase CYA to 50? is CYA testing agents from TF 100 may be old(Aug 2013)?