Over the last several days my FC levels have steadily increasing even though I've been putting less bleach in the pool. I usually dump in between 3/4 gal. and 1 gal. in the skimmer every evening and this keeps the FC level around 4.5 ppm. But over the last few days I've only put in 1/2 gal. or less per day and FC level has gone up by about .5 ppm per day. Sunlight has been the same and there have been no swimmers. Water is sparkling clear. Last nights numbers are listed below. I did not put any bleach in the pool last night, so I'll check again tonight to see if the FC level dropped.
Is there something I'm missing? Am I being paranoid? Or is my brand new K-2006 test kit wrong?