Let’s get real for a second. If you want zero calcium, you need a reverse osmosis system. It pushes water through a fancy membrane.
Calcium gets trapped. You get pure H2O. It’s like a bouncer at a club—only the good molecules get in.
The downside? It wastes water. About three gallons get dumped for every one you drink. The planet frowns a little.
Quirky alternative: Rainwater
Collect rain. It’s naturally soft. But check local rules. Some towns think you’re stealing clouds. True story.
