I'm four days into a chlorine shock for mustard algae and for the last two days the morning Overnight Chlorine Drop Test reading is higher than the previous night. That's never happened to me before - am I missing something?
Assuming it isn't normal, I can think of three explanations: experimental error, tri-clor tab feeder leak, and maybe something like dead algae releasing chlorine to be measured.
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FAS test, CYA 50, target 29.
Yesterday morning the reading was 30.5 compared to the previous evening 30.0, using older (but still newer than a year-old) powder and reagent. I didn't intentionally add any chlorine yesterday. This morning the reading was 23.5 compared to last evening's 20.5.
Assuming it isn't normal, I can think of three explanations: experimental error, tri-clor tab feeder leak, and maybe something like dead algae releasing chlorine to be measured.
=====
FAS test, CYA 50, target 29.
Yesterday morning the reading was 30.5 compared to the previous evening 30.0, using older (but still newer than a year-old) powder and reagent. I didn't intentionally add any chlorine yesterday. This morning the reading was 23.5 compared to last evening's 20.5.