An industrial course of comprises the next step:
An upstream course of dumps soiled water into the higher reservoir the place it slowly drips by means of the filter, amassing within the decrease reservoir. After the higher reservoir is totally empty, the decrease reservoir is momentarily eliminated and poured right into a downstream course of.
Often, the higher reservoir is overfilled with soiled water. In these circumstances, the system ultimately reaches the next equilibrium state:
Discover there may be nonetheless an quantity X of soiled water remaining within the higher reservoir.
On this case, the decrease reservoir can’t be eliminated as a result of water will proceed to filter by means of and drip on the gear under. Nevertheless, employees have devised an emergency answer: they manually siphon an applicable quantity of fresh water out of the decrease reservoir to make the mandatory room.
Query: What’s an "applicable quantity"? Is it quantity X, or another quantity?
(Extra exactly: What’s the minimal quantity of fresh water which should be faraway from the decrease reservoir with the intention to make sufficient room for all of the soiled water within the higher reservoir to filter by means of, leaving the higher reservoir utterly empty?)
