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The original was posted on /r/askscience by /u/kaszebe on 2023-09-27 03:20:09+00:00.

I live in an area with very hard water. I bought a countertop reverse osmosis machine. It has a re-mineralization filter at the end.

However, the water still tastes…not as good as Smart Water. I don’t have a background in chemistry and don’t want to figure out potassium/etc ratios.

So, I’m wondering if I should get a water softener for the kitchen sink and then use that softened water in the RO machine.

I’m hoping that soft RO water will taste better? However, I read online that RO machines can soften water.

Thank you