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Just done 5 tests with my Hanna alkalinity checker ...ppm
Test 1 ,127 ppm ...7.1 dkh
Test 2 ,132 ppm ...7.3 dkh
Test 3 ,130 ppm ...7.2 dkh
Test 4 138 ppm ...7.7 dkh
Test 5 129 ppm ...7.2 dkh
So which one is it , the130 ppm and 129 ppm .
Hi755s reagent was opened a couple months ago ,exp 04 2019
I do the test exactly the same every time .
Think I'll be moving back to salifert :mad:
Just done 5 tests with my Hanna alkalinity checker ...ppm
Test 1 ,127 ppm ...7.1 dkh
Test 2 ,132 ppm ...7.3 dkh
Test 3 ,130 ppm ...7.2 dkh
Test 4 138 ppm ...7.7 dkh
Test 5 129 ppm ...7.2 dkh
So which one is it , the130 ppm and 129 ppm .
Hi755s reagent was opened a couple months ago ,exp 04 2019
I do the test exactly the same every time .
Think I'll be moving back to salifert :mad:
+1Are you serious?...almost exactly the same numbers...