A typical ECG in AF shows no P waves and an irregular ventricular rate. AF is often treated with medications to slow the heart rate to a near normal range (known as rate control) or to convert the rhythm to normal sinus rhythm (known as rhythm control). Electrical cardioversion can also be used to convert AF to a normal sinus rhythm and is often used emergently if the person is unstable.
How does a water tower work? Water towers provide extra water storage for a town's water supply. They hold about a day's worth of water, so if the town's pumps fail (like during a power outage), the water tower acts as a backup water supply.
The fact is, we could, and some water systems are set up that way. But water towers offer some important advantages. We can still get water even if the power goes out. Once the waters in the tower, gravity will do the rest. It keeps running even if televisions and air conditioners wont â at least until the tank runs dry.