A tankless whole-house reverse osmosis system is the Ferrari of water filters. It’s expensive, slightly ridiculous, and wastes some fuel—but it’s also thrillingly pure. If you can afford it and your water is nasty, go for it. Your taste buds will throw a parade.
If you can’t afford it, just boil your tap water and pretend it’s “artisanal.” No one will know. Except for that one friend who installed the tankless system. He knows. He always knows.
Now, if you’ll excuse me, I need to go drink a gallon of my pristine, tankless-prepared water. My bladder is not happy, but my soul is. Cheers.