Have you ever experienced a "water failure"? That is, have you ever turned on your faucet and found that no water came out of it? If you get your water from a municipal water system, the answer is probably "no."

We have power failures all the time. Cable TV goes out fairly frequently. Although less common, the phone system goes down every so often, and it is now common to get an "all circuits busy" message when making long-distance calls. But the water in any city or suburb is always there. Water pressure is very reliable.

A big reason for that level of reliability is the water tower. You see water towers everywhere, especially if you live in a flat area full of small towns. Each water system has one or more towers. In this article, we will look at how water towers work. The next time you drive by a water tower, you will know exactly what it is doing!