- Joined
- Oct 18, 2019
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I am using the Hanna HI755 Alkalinity checker with reagent due to expire on 06/21. I've tried testing twice on three different days this last week and get 33 or 34 ppm which is under 2.0 dKh. Can Alk even be that low or do I have a bad checker or reagent? When I tested say last month or before that it read between 7 & 8 dKh. Also, this was a used checker that I purchased.
Thoughts??
As a side note....I ordered a new HI772 that is due in on Saturday but I'd like to figure this out just because.
Thoughts??
As a side note....I ordered a new HI772 that is due in on Saturday but I'd like to figure this out just because.