Understanding the intricacies of water quality is essential for the residents of any city, but it becomes particularly critical in urban environments like New York City. With millions of people relying on a vast and complex water supply system, concerns about water hardness and its implications for health, plumbing, and daily life naturally arise. Hard water, characterized by high levels of minerals such as calcium and magnesium, can affect everything from the taste of drinking water to the efficiency of household appliances. As New Yorkers go about their daily routines, many may unknowingly interact with water that has varying hardness levels, which could influence their choices regarding cooking, cleaning, and…