So I hooked up my ro/di system in the backyard and started pumping some water out . I got 10 gallons made and I tested the water with a Hannah primo. And it showed 1ppm tds. Is something wrong with my ro/di or is it ok that it's 1ppm tds?
They should not need calibrating...besides what do you calibrate it against? I think you just need to break it in a bit longer.