FC a little high

[Patrick]

Is it safe to swim when the FC is 10?
CC is .5 and everything else is in range (using TF-100)

 

[PaulR]

FC by itself isn't enough to say one way or the other; it's how the FC relates to CYA that matters. FC 10 with CYA 20 is at shock level and I wouldn't go in. FC 10 with CYA 90 is the high end of the normal range and is no problem to swim in. Check out the Chlorine/CYA chart to help with this decision.
--paulr

 

[Patrick]

Thanks!

CYA is at 50.

 

[No P in my ool]

Jump in,the water's fine!