Clear Inline Hose Filter Canister
Minerals , particularly calcium and magnesium, are what constitute “hard water”. Hard water is responsible for water spots, poor-lathering shampoo, and that green ring around your bathtub. The calcium and magnesium actually harden inside pipes (called “scale”) and on other surfaces, including your vehicle. When you rinse with hard water, you could be dousing your vehicle with hard mineral deposits. The only way to prevent hard water deposits is with a water softener.
