Hi guys. I made a dumb mistake of adjusting my TDS sensor to what I thought was the right reading but i was way off. Is there a way to calibrate these things? Maybe a solution? I seen people talking about a 342ppm solution or something like that? But I’ve heard these things can be insanely inaccurate, similar to trident calibration solution. I have an Amazon tds meter but that thing never reads 0! lol. Any advice is much appreciated!