Updated: Mar 12
Iron is a natural substance found in the ground and as water passes by, it can't help but bring some iron along for the ride. Unfortunately, the water tends to leave it behind just as easily. Iron deposits can cause stubborn rust stains in your bathtub, toilet, sink, or even on your clothes during the wash cycle. If you have enough iron in your water, it can even taste metallic when you drink it. Iron can either be dissolved in your water so it's nearly undetectable to the naked eye, or it can be obvious brown particles that you can see when you fill a glass with water.