RO removes heavy metals. Lead, copper, mercury—yeah, all that scary-sounding stuff from old pipes. If your tap water tastes like a rusty penny, RO is your new best friend. It also zaps arsenic. Yes, the poison from murder mysteries. Don’t worry, it’s usually in trace amounts, but still—yikes.
Then there’s fluoride. Now, I know, some people love it for teeth. Others think it’s a conspiracy. RO doesn’t care about your opinion; it removes about 85-95% of it. Same for chlorine. That swimming pool flavor in your tap? Gone. RO says, “Not today, chemical aftertaste.”
Salts, Minerals, and the Drama
Here’s where it gets interesting. RO removes sodium and calcium. Yes, the stuff in hard water that ruins your kettle. It also kicks out nitrates from fertilizer runoff. If you live near farmland, you might be drinking diluted salad dressing. RO fixes that.
But wait—does RO remove good minerals? Yep. It’s an equal-opportunity filter. It doesn’t care if something is “healthy” or “bad.” It just says, “All dissolved solids, out you go.” That’s why some people add mineral drops back in. Fancy, right?