Why don't you use your kh
kit to measure the kh
of the calibrated solution then compare that to what it states in the instructions?
There may even be discrepancies there.
Also, I'm wondering how the provided solution is calibrated to 4dkh. And what is the starting ph of that solution if you are adding a buffer to RODI
. If it has gone through RODI
how good is the RODI
unit they used and how accurate is the TDS
tester they used to test post RODI
Measure the ph kh
of the provided solution just to see if it is what it says it is?
Maybe you could mix some RODI
with baking soda to achieve the same dkh
as your tank and use that as the solution to put in the drop checker and then compare against the chart?
I would say stick to one drop checker and just take there reading as a rough guide as to where your co2
levels are at. In theory the drop checker should be close to the chart but there are so many things that could disprove that in practice.
Am I making any sense or just talking jibberish here? lol
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