Since posting, I'm thinking my reagents may be old. I don't know how long my test kit was sitting before I purchased it, The pool cleaner goes through many bottles, so I would think his is probably newer than mine. I'm taking my water to a pool company, let them test, and see what they come up with. If they are in line with the pool cleaner I will have my answer. I just drained my pool after 14 years because I had what I call "Cake Icing Dribbles" on the walls. My TDS'S were off the scale. I'm now in the process of re-balancing my chemicals. It is a gunite pool. With the TDS'S removed, I want to balance the chemicals with as little addition of chemicals as possible. Thank's
Didn't think about temperature. Now you mention it, his reagents are kept in the back of his truck, exposed to the hot sun all the time.
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