New to Pools/Spas

[twizted1]

And today's results

pH -7.4
FC - 12 (dosed to 15 prior to sunset last night)
CC - 0.0
TA - 150
CYA - ~25

Is it normal for TA to float a bit? Such as ours going from 160 to 150, or is it a function of the TA being in the range of 150-160?

[PoolDoc]

With the Taylor K2006, the calcium and alkalinity test error ranges are 10 - 15%. Your variation is WELL within that value. But, yes, even apart from testing imprecision, TA tends to wander a bit.