As a result of reading chemgeek's FC/CYA sticky I feel that I have to raise my FC from the usual 2ppm up into the 5-7 range.
Reading that people had issues maintaining higher levels of chlorine especially in sunnier climates (I'm in North Texas) I jacked up my SWCG fairly high thinking it would take a while to get there. As it turns out that little thing is really quite efficient. I jumped from 2.0 to 12, which held overnight, in two days
I have a CYA level of 40, rising hopefully to about 70 over the next week as the stuff dissolves and I have clicked my SWCG back down to non-testosterone driven levels! The ortho test maxes out at 5, this morning it even went a little red before turning very, very yellow. My question is this...
If you follow the advice of the charts and run an FC above 5 and you are meant to test daily are you performing the FAS/DPD test every day?
My numbers FYI:
FC 12 (and raging!)
TA 120 (and falling slowly)
pH 7.7 (and being beaten into submission with daily doses of acid)
CYA 40 (and rising slowly)