Is Your Water Hard? by Yilin Posted: May 17, 2019 Have you noticed some white buildups on dishes after you run the dishwasher? Do your faucets have a crusty sediment on them? Highly likely it is because your water hard. … Read More Category: Change Category Tags: calcium buildup, calcium carbonate, groundwater, hard water, magnesium, ppm, sodium, water softener, Yilin Zhuang