I just received my Hanna TDS meter. I live in San Francisco. When i measured my tap water, the TDS read 44 consistently. Is this a correct reading, or do i ahve a defective meter? Anyone in SF have readings like mine?
Yeah, the Pacific NorthWest has one of the softest water in the country. Half of the water in my city is from the Colorado River, and if the water get any harder, you can break your neck if you try to jump into a pool filled with tap water