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Water problems, in plain language

What each symptom usually means, what it can't prove, and the honest next step — no purchase required to read any of it.

Hard water
White scale on fixtures, spots on dishes, soap that won't lather, stif…White scale and spots
Chalky buildup on faucets and showerheads, cloudy film on glassware, k…Rotten-egg smell
A sulfur-like odor from taps — sometimes only when running hot water.…Orange and red stains
Rust-colored marks in sinks, tubs, toilets or on laundry.…Black stains
Dark deposits in toilet tanks, on fixtures, or in laundry.…Chlorine taste and smell
A swimming-pool taste or smell in drinking water, mostly on city water…Cloudy water
Milky or hazy water from the tap.…Sediment
Grit, sand or particles in water, clogged aerators, reduced flow.…