Pool sparkles like diamonds, numbers are spot on, but when I test CYA (Taylor K-2006 kit) several times with same sample I get a 30 then a 40 then a 35. Pool store tells me its 60 haha. This is one of the hardest test to determine where you really are with CYA. I run test just like Taylor video instructions.
Added bleach last night and checked an hour later and FC was at 5 @ 9:00pm
This morning 6:00am before daylight had a FC reading of 4.5 (only 0.5 loss)
4:30PM today FC at 3.5 (1.5 loss in almost 24 hour period)
Thinking my CYA is about 40. I'm using the TFPC CHLORINE / CYA Chart
If someone could come up with a better way of testing CYA with accuracy, he or she would become a $MILLIONAIRE$ several times over.
Any input would be appreciated, Thx.