treston
New member
Has anybody got a source for TDS (total dissolved solids) calibration fluids?
I can find bulk bottles of 1200ppm for use in hydroponics, but I have read I should be using fluid for salts usually found in coffee. Has anybody a good cheap source for suitable coffee calibration fluid. (or does anybody simply get away with other generic fluid).
I can find bulk bottles of 1200ppm for use in hydroponics, but I have read I should be using fluid for salts usually found in coffee. Has anybody a good cheap source for suitable coffee calibration fluid. (or does anybody simply get away with other generic fluid).
