nabokovfan87 Posted April 22 Share Posted April 22 I am always struggling to read this pad, so please feel free to take a look and let me know what you think. For clarity, the cut strips: L is from the tank R is from the tap. I had to retest which is the complete strip you'll see in the third photo. I'm torn between 50 and 150 and 450 ppm. Link to comment Share on other sites More sharing options...
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