Karl, I have a portable one that you can have for cheap. I don't know the brand. I'll dig it up tonight and test it against my other TDS meter to make sure its reading correctly.
Hey, Karl, the portable TDS I have is the freebie one everyone got in on. You can have it if you want it. I just compared it to my dual tds meter: my meter read 27-30ppm for my Tap, and the cheapy read 25ppm. Its your call. I can bring it to the swap.
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