How to Remove Hard Water Stains

5 steps 30 min Beginner From $1510.05

Hard water stains are mineral deposits. Acidic cleaners dissolve them — vinegar (mild), CLR (medium), muriatic acid (heavy). Test in inconspicuous spot first.

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Step-by-Step Instructions

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Step 1: Try vinegar first (cheapest)

Spray full-strength white vinegar, let sit 15 min, scrub, rinse. Works on light stains on most surfaces.

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Full-strength white vinegar + soak

Paper towels soaked in vinegar pressed against the stain. ~$3.

$0.05/use $3 for 60 View Details
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Vinegar + baking soda paste (scrubbable)

Paste sticks to vertical surfaces. Mild abrasive.

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Step 2: Step up to CLR for moderate

CLR (calcium, lime, rust) is stronger acid. Use in ventilated area, gloves, no metal surfaces.

Warning: CLR is acidic. Wear gloves and eye protection. Don't mix with bleach or ammonia. Use in ventilated area.

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CLR Calcium Lime Rust Remover

Spray, wait, scrub. ~$8.

$8 View Details
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Lime-A-Way Toilet Bowl Cleaner

For toilet bowls specifically. ~$5.

$5 View Details
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3

Step 3: Pumice stone for set-in toilet rings

Pumice safely scrubs porcelain — won't scratch but removes mineral rings.

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Pumie pumice scouring stick

Toilet-specific. Wet, scrub. ~$5.

$5 View Details
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Don't use on fiberglass or acrylic

Scratches non-porcelain surfaces. Test first.

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Step 4: Prevent with water softener or filter

Long-term fix: address the hard water. Water softener for whole house. Shower filter for bathrooms only.

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Aquasana Whole House Water Softener

Salt-free. Reduces scale. ~$1500.

$1500
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Shower head filter

Reduces minerals at point of use. ~$30.

$30 one-time View Details
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5

Step 5: Squeegee shower glass after each use

Doesn't prevent at the source, but prevents new buildup. 30-second habit that saves you the descaling chore.

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OXO squeegee

Hangs in shower. ~$10.

$10 one-time View Details
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