T
The Hemp Goddess
Guest
Is this the same place that told you that a HPS is fine to use all the way through?
If you can afford it, get the Bluelab pH pen and storage solution. You will also need the 2 calibration solutions as well. These are necessary for keeping the pen reading accurately. They are worth the money to me.
I have heard mixed reviews on the Hanna instruments. However I do have a Hanna TDS pen that has held up well for me.
I have bought 5 hanna red meters lol dont touch the screw whatever you do
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