Voted for

• Other.

I am not sure if I should pick "mineral water" or "local water" from your options. For me, mineral water is (clean) water enriched with minerals (often for an increased price), while "local" water is water near my residence. Those two are not mutually exclusive for me (mineral water can be local water, and local water can be mineral water).

Simply put, I use filtered tap water. I don't think reverse osmosis is necessary.