TA is high, CYA is low

Started the SLAM yesterday evening. I added the suggested chlorine amounts from poolmath and checked about 30 minutes later. My FC measured at 18. CC measured at 1.5.

Measured again this AM before the sun came up. FC is at 15 and CC is at 1.0.

I have to say the TF 100 leaves little room for error, and I really like that speedstir!
 
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