English to Serbo-Croat Tech/Engineering Petroleum Eng/Sci

The early pumps were 'visible gas' pumps, with a clear glass cylinder, usually 5 or 10 gallons on top of the pump, so you could see what you were getting, or if the gas was dirty (a big problem at that time). There was a manual pump you’d pull back and forth to pump the gas out of the underground tank into the cylinder, which was 8 or 10 feet tall. From there the gas flowed by gravity down the hose into the car.