What happens underground at your local gas station

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Pumping fuel is something you've been doing for years now (unless you're one of those people in New Jersey), and it's something you probably don't put a lot of thought into.

You pay, you pump, and then you leave. What you should be aware of, however, is the amount of safety technology on hand to keep you and the filling station safe.

We found a quick video that highlights the safety features utilized on a modern underground fuel tank. You don't simply bury these tanks in the ground and hope for the best. There are leaks, pressure, and rust issues to worry about. Thankfully, smart people have worked out a number of technologically sound ways to keep them safe.

The tank itself has a number of measures in place to make sure that a leak is detected quickly. There are also valves and floats to make sure it isn't overfilled, or that there's too little or too much pressure inside the tank. Gas stations typically use a dual-walled tank, and that smaller secondary space between the walls is filled with brine. If the pressure in the brine tank drops, it means that there's been an inner or outer leak, and an alarm sounds.

Learning the details behind a seemingly mundane item can often be an eye-opening and interesting experience. We wouldn't have guessed this could be said about an underground fuel storage tank, but that seems to be the case.

 
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