Does anyone drink tap water anymore – at least in the US? It seems like every store not only sells bottled water but has a reverse osmosis water dispenser on the premises. Department and hardware stores sell home water filters . Some restaurants even advertise the fact that they purify their water instead of serving it straight from the tap.
The point of water filtration is to remove any impurities. City water departments apply advanced filtration and purification processes on water before it reaches a tap. However, most people don’t seem to trust the government’s ability to provide good water. They require another level or two of filtering before they will deem tap water to be drinkable.
Water filters operate on one of three different systems. They either pass the water through a physical barrier or they use a chemical or biological process to cleanse the water. Some systems will use a barrier to remove particles and then a chemical reaction to further purify the water . This dual filtration process is used in many large water treatment plants as well as some home purification systems.
It is easy enough to contact the local water department to learn how water is filtered and treated in a given town or city. Once people understand the type of filtration used by their local water plant, they may feel more comfortable drinking that tap water.