First, let’s talk about the enemy. Iron in well water usually comes in two flavors: ferrous and ferric. Ferrous iron is the sneaky one—it’s dissolved, clear when it comes out, but oxidizes and turns orange like my morning glass of doom. Ferric iron is already oxidized, showing up as those nasty red flakes. Charming, I know.
Most filters work by oxidizing the iron so it becomes a solid particle you can trap. But not all filters are created equal. Pick the wrong one, and you’re just buying an expensive paperweight. Your choice depends on your iron level, your water’s pH, and whether you have other minerals like manganese or sulfur. Side note: if your water smells like rotten eggs too, you’ve got a whole other party happening.