The tanks had held something else down in that pit.
The tank itself would provide some thermal protection, maybe hold a little air.
Together, the tanks held 32 million cubic feet, enough to supply 160,000 homes for a month.
Those three tanks hold about 15 million gallons of crude.
The tank holding the oil can be placed anywhere on the vehicle.
In fact, both tanks hold water at an ambient temperature.
That tank held compressed air, but only in the upper section.
Also we must have used all the water the tank could hold by now, but if you notice it's not empty.
Unfortunately, the tank holds only 9.2 gallons, so the car's range is limited.
We'd had some rain, so the better water-holes and tanks were holding water now.