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I have the dkh checker and love it. I used to use the Red Sea test kit but I think reading it was a pain. Very happy with the Hanna checker. I also use the phosphate checker as well
I agree. Micro fiber cleaning cloth and I do RO/DI rinse if further cleaning is needed I use Hanna cuvette cleaner solvent. Just FYI if you shop for reagents and supplies from hanna's web site you can save $$$. Not advertising.The big thing with the Hanna checkers are the glass test tubes have to be super clean even your finger print can make the test off alittle bit. So what I do is hold it with a micro fiber cleaning cloth so I don't touch it.
To conversions from ppm to dkhI use the Hanna ppm checker and made up a card with the conversions. I read in ppm and record in DKH. People understand DKH more then ppm.
Good, congratulationsI bought the dkh checker

