PH test bottle

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JaredShope1

Aquarium Advice Activist
Joined
Aug 12, 2019
Messages
114
I took a PH test of my water with my API master water test kit and got a PH of 8.8 which is crazy high, then I took another test to verify and it’s only 7.4. How is this even possible?
 
Could be almost anything possibly some contaminate in the test tube or incorrect number for drops added... It has happened to me a few times...
 
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