Water comes from two types of sources. Surface water and ground water.
Surface water comes from stuff likes lakes, streams and rain. It’s easily accessible water.
Ground water comes from the ground. If you dig down into the ground there is water that will leak out, this is how wells work.
The thing that is special is that ground water can be pumped out but can’t be pumped back in. Essentially if you take ground water out then it’s out, and if you pump out too much ground water then you run out of water until nature naturally replenishes it. So if you use a lot of ground water and then there is a drought or a forest fire or something similar then youre just ouf of water.
Surface water on the other hand is basically renewable. If you pump water out of a stream, shower, and then pump it back into the stream then it largely makes no difference to the amount of water.
So it largely just depends on where you live and where you get your water from.
Ofc there are other aspects to it like the energy required and water treatment necessary to clean the water but the water itself doesn’t disappear.
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