Chlorine in shower water can cause dry skin and hair, itchy skin and eye irritation. In fact, chlorine exposure from one shower is equal to an entire day's amount of drinking the same water.

It should be noted that hard water does not pose a health risk to those who ingest it. Yes, it may taste bad, but it is not poisonous. It is, however, very troublesome when it comes to buildup on your plumbing fixtures.

The water within private wells can become contaminated in a variety of ways. Some sources of well water contamination can be observed with the naked eye, while others cannot.