"Holding tanks" refers to containers or reservoirs used to temporarily store or hold a substance, typically liquids or waste, until they can be properly managed or disposed of. Full definition
It may sit in an oxygen - depleted holding tank for up to a year before it is put in a package and ends up in stores (4). (alivebynature.com)
That is one of the largest holding tanks on our list! (geekwrapped.com)
During the process of making juice, the juice is squeezed from the fruit and then stored in very large oxygen - depleted holding tanks. (greenclaud.com)