You can get no install ones that go on your counter or light install ones you connect under your sink (no more difficult than installing a bidet in your apartment). Cost wise they are cheap enough they pay for themselves (including filters) vs even cheap bottled water over the course of a year (well, if you only drink 1 bottle per week or something the economics will be different - 2 bottles per day should ~break even). ~3 filters per year, depends on the model and usage.
Bottled water is usually just a convenience factor of "I can take x bottles from this pack wherever at once on demand, or even grab them full of water I like while not at home".
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You can get no install ones that go on your counter or light install ones you connect under your sink (no more difficult than installing a bidet in your apartment). Cost wise they are cheap enough they pay for themselves (including filters) vs even cheap bottled water over the course of a year (well, if you only drink 1 bottle per week or something the economics will be different - 2 bottles per day should ~break even). ~3 filters per year, depends on the model and usage.
Bottled water is usually just a convenience factor of "I can take x bottles from this pack wherever at once on demand, or even grab them full of water I like while not at home".