Iron staining often comes from water that starts clear, but begins to rust in front of your eyes. Iron stains are orange and red colored

Manganese staining looks similar to iron but is brown to black color

Copper staining is typically evidence that your water is aggressively dissolving your copper pipes and fittings. Left unchecked your pipes and appliances will fail leading to very costly repairs such as replacing pips, drywall and flooring and black mold remediation. Copper stains are identifiable by their blue/green color

Hardness forms white hard to remove spots on everything it touches. It reacts with soaps to cause buildup and spots on appliances, surfaces, your body and hair, windows, cars and more

Pink slime stains are actually caused by airborne bacteria and a water filter won't help. Learn about pink slime and what you can do about it