I have the Taylor K-2006 chlorine test kit. I use the chlorine test in my spa as well- my spa is bromine. I was told I could just multiply by 2.25. So with a 25mL sample each drop indicates an FC of .45.
Is this also true for measuring CC? The CC levels in my spa, assuming the same 2.25 multiplier are generally around 1-2 which is way higher than my pool which is always pretty much 0.
What are the recommended levels for FC and CC for a bromine spa kept at 100F?