Hi
So I got a digital ph tester, calibrated it with the powder that it came with. Every thing seemed fine, water out the tap was 6.5.
Anyway, tested it again today and when I tested the water its all over the place. Fresh out the tap 6.5, warm (wish) water that had been boiled was reading 8.5.
Is this normal? Does water thats been filed have a different ph? My plants are only 1 inch out the ground at the mo so I've got time to sort a new one if thats the issue.
Thought I'd see what you guys think.
Cheers
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