Well and municipal water quality cannot be controlled, but you may protect yourself and your family from dangerous pollutants by using a filter—or even simply by improving the flavour of your water.
This does not imply, however, that public water sources are devoid of pollutants such as chloramines, asbestos, cadmium, and fluorides since the EPA controls them. However, understanding your water supply and the pollutants it may contain is necessary before deciding whether or not to purchase a filter.
According to the CDC, if you receive your water from a private well, you should get it tested at least once a year at a state-certified lab. A report from the Environmental Protection Agency (EPA) on the quality of your drinking water is included with your water bill if you use a public water system. This report will inform you of any pollutants in your water.
Even if the bad taste in your tap water isn't caused by anything detrimental to your health, you may decide that you need a water filter to make it taste better. The CDC, on the other hand, cautions that many pollutants are imperceptible to the human senses. If you've confirmed that the water you're using contains dangerous levels of arsenic, nitrates, chlorine, or lead, you'll want a water filter that can handle those issues directly.