Discussion in 'Hydroponics / Aeroponics' started by Merlin85, Jun 4, 2009.
I would say, test your testing equipment.
fwiw i had been using oakton tds meters for decades and finally got around to calling them to get a definitive answer on what factor they use. they say every oakton meter that has ever been is 0.5 scale. i couldnt find that published in any of their literature
Its ftom the box calibratet... i have turbo high hard tap water..
Again, I would say test your equipment, as they sometimes come DOA and miss-calibrated.
I hear what you saying tho..
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