Hi,
I have the update hanna magnesium checker (the one with one part liquid and second part powder);
I've tried everything to get an accurate reading but it always reads 100-200ppm higher.
Anyone had success with it?
I have the update hanna magnesium checker (the one with one part liquid and second part powder);
I've tried everything to get an accurate reading but it always reads 100-200ppm higher.
Anyone had success with it?