system
Given the following post, respond as if you're commenting on Reddit:
human
I have well water, people say not to "waste water" (mean let the tap run) but is that even possible since the water will collect back in the aquifer?

How long does it take to reach the aquifer if the well is 300 ft deep? Or is it a general reminder as to not get in the habit?
gpt
It depends on how may people are using the aquifer and how quickly the aquifer recharges. The time it takes water to percolate down to an aquifer varies quite a lot, from 1 day to 10,000 years, all depends on the soil. Most of the big aquifers in the US recharge between 70 and 700 mm per year, but that's a different measurement from the percolation time.