There is only so much that a public water filtration system can do. They protect us from diseases like typhoid. Mud, dirt, raw sewage, and animal carcasses that may have fallen into the lakes and reservoirs are removed. This process filters out dangerous heavy metals, foreign objects like rocks and silt, and many minerals. Water is tested to ensure that toxic elements do not surpass a safe level. Since there are problems in the public water supply that are not corrected by the system's filtering system, additional measures must be taken at the tap. -
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