A pressure gauge is a device that will measure and report the pressure level or liquid or gas that is concealed in any closed system. Pressure gauges are used heavily in the manufacturing industry because of the large machines used in that field. With these large machines being is use it is important to know their pressure at all times, so built in on an outside display is a pressure gauge. Pressure gauges are also found in many other applications, from smaller machines to automotive and household use. For example most people have an air compressor to blow things up such as inflatable pool toys or bike tires. Some of these units have an air pressure display built right into them.
Yesterday was the 4th of July, so I went to go see the fireworks with some friends. That particular day was scolding hot. We laid on a miniscule square blanket on a warm cement bridge, bathing in sweat as we waited for the sun to go down. To make matters worse, it had rained recently and the air was very humid and sticky. It was all worth it to experience people screaming “America” and other patriotic screams while watching bomb-like explosions in the sky.
On the way home from an out of town social gathering with a full car of roommates and friends we stopped at a gas station to refuel and stock up on snacks. The driver and shotgun rider went into the store while the three in the backseat remained in the car. That’s when a man walked up and knocked on the window to say “your tire is a little soft.” We sat there dumbstruck and just stared at the nice man.
Owning and operating a vehicle begs a lot of maintenance, particularly when it comes to gauging the various pressures involved. Back in the day, up until around the 80’s in most places, gas station attendants would do it all for you in one, easy stop—in some cases for free, no less. If your tires were low on air, for instance, they would fill them right up while you sat comfortably in your car seat listening to the radio or doing the Sunday crossword. Slip the guy a tip through the window, and off you went, all spruced up and ready to go, without ever having to get out of the car.
When I was in high school, my friend and I were driving around in her car and we noticed one of her tires looked a little flat. We thought that it might be a good idea to pull over to a gas station and put more air in that tire so that exactly what we did. Hooking the air station to the tire we filled it up until it looked right again. A few weeks later my friend was suddenly finding that her car was not driving correctly as usual and that something seemed fishy. She had her father look at her car to see if he could figure out what was wrong with it. Sure enough he looked at the tire and said that it was way over inflated and told us that when filling a tire we must use and air pressure gauge to avoid this from happening. Both of us having little knowledge about cars, we have no idea that an air pressure was important to be used when filling up car tires. An over inflated tire is more at risk to potential popping and damage. To this day I still use an air pressure gauge when filling up my tires to stretch out the longevity of my tires.