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Surface Cleaners
Hard Water Cleaner
4.5 (20)Dissolves hard-water stains, calcium, lime and soap scum — without scrubbing your surfaces raw.
Safe on
- Glass
- Tile
- Chrome
- Brass
- Fixtures
$14.99$17.99
In stock — ready to ship
- Free U.S. shipping over $40
- 14-day satisfaction guarantee
- Secure checkout
Ships in 1–2 business days · Easy 14-day returns
The Problem You’re Solving
Hard water stains.
Sound familiar?
- Spots on glass after every wash
- White crust on faucets and fixtures
- Cloudy film on shower doors
- Vinegar barely touches it
Also tacklesCalciumLimeMineral depositsSoap scum
That’s exactly what Hard Water Cleaner is built for.
Dissolves hard-water stains, calcium, lime and soap scum — without scrubbing your surfaces raw.
The Diamond Shine Difference
Engineered to break the bond — not just wipe it around.
Ordinary cleaners just smear hard-water buildup around. Diamond Shine's purpose-built formula breaks the mineral bond at the source, so calcium, lime and soap scum release and wipe away cleanly — without the harsh acids that etch chrome and glass. Select formulas are powered by Diamond Magic®, our diamond-infused technology.
Safe onGlass · Tile · Chrome · Porcelain · Fiberglass · Stainless steel · Sealed stone
Spot-test firstPainted surfaces · Unfinished wood · Unsealed natural stone · Delicate plastics
Supporting technologyPowered by Diamond Magic® — our diamond-infused formula.
Made For These Jobs
Made for your toughest surfaces.
Works acrossIndoorOutdoorResidentialCommercialAutomotiveMarineRV
Great on
- Glass
- Tile
- Chrome
- Porcelain
- Fiberglass
- Stainless steel
- Sealed stone
Use care · spot-test first
- Painted surfaces
- Unfinished wood
- Unsealed natural stone
- Delicate plastics
Surfaces vary — always spot-test a small, hidden area before first use.
Compare
Find your fit.
- Breaks the mineral bond — vinegar only masks it
- Safe on the chrome and glass finishes acids etch
- Streak-free in a single pass
- Professional-grade concentration
| Diamond Shine | Typical off-the-shelf | |
|---|---|---|
| Purpose-built for the job | ✓ | General-purpose |
| Works as part of a complete system | ✓ | Standalone |
| Clear surface guidance | ✓ | Limited |
| Compatible tools & accessories | ✓ | — |
General comparison to typical off-the-shelf products, based on Diamond Shine’s product design.
You’re viewing
Hard Water Cleaner
20
Best forHard water stains
$14.99
This product
Pick what fits your job — every option is genuine Diamond Shine.
How to Use
How to use Hard Water Cleaner
- 1Apply to the surface
- 2Allow appropriate dwell time
- 3Agitate if needed
- 4Wipe or rinse clean
- 5Dry and inspect
- Work top-down on glass to avoid drips
- Pair with a drill brush for grout and textured tile
- Letting it dry on a hot surface
- Skipping a spot-test on natural stone
Keep out of reach of children. Use in a well-ventilated area. Review the Safety Data Sheet (SDS) for full handling and first-aid guidance.
On compatible surfaces, hard-water spots, calcium, lime and soap scum release and wipe away for a streak-free finish.
Used Together By Professionals
Proven cleaning workflows.
How pros combine Diamond Shine products for a complete result. Each item sold separately.
Bathroom RestorationBathroom
Glass, chrome and grout restored
What You’ll Need
Build your Diamond Shine system.
Start with our recommended set, then add or remove anything — your total updates as you go.
Recommended starting system
- Hard Water Cleaner
- Medium Drill Brush Set
- Corner Drill Brush
$41.97
Your starting product
Hard Water CleanerYour starting product$14.99
Choose your cleaning tool
Medium Drill Brush SetBest for: Grout deep-clean · Tile & showers · Sinks & tubsWhy add this? Cuts scrubbing time dramatically and reaches into grout and texture by hand you can’t.$15.99
Power Scrubber 37Why add this? Cordless power for tubs, tile and large areas — less effort, faster results.$24.99
Corner Drill Brush 25Why add this? Cuts scrubbing time dramatically and reaches into grout and texture by hand you can’t.$10.99
Add the finishing items
Crevice Brush SetWhy add this? Reaches corners, edges and tight grout the larger brush can’t.$4.99
Replacement & maintenance
Power Scrubber Replacement Heads 1Why add this? Keeps your tool performing like new for future jobs.$21.99
Prefer a ready-made bundle?
Diamond Home Bundle – 40oz Cleaner, Hard Water,...
$74.99$95.95Save $20.96
Auto & Outdoor Combo
$27.99$35.98Save $7.99
Complete The Job
Complete the job.
A few finishing essentials can make the result easier, faster or more complete.
Medium Drill Brush SetScrub grout & texture the spray can’t reach$15.99
Corner Drill BrushScrub grout & texture the spray can’t reach$10.99
Crevice Brush SetReach tight grout lines & fixture edges$4.99
Still Not Sure?
Buy with confidence.
Here’s what puts customers at ease.
Safe on your surfaces
Great on Glass, Tile, Chrome, Porcelain, Fiberglass, Stainless steel, Sealed stone.
Clear guidance
Use care on Painted surfaces; Unfinished wood; Unsealed natural stone; Delicate plastics. Always spot-test a hidden area first.
Risk-free to try
Backed by a 14-day satisfaction guarantee.
Will it scratch glass?
No — it is non-abrasive and safe on glass, leaving a streak-free finish.
Will it damage chrome or fixtures?
It is formulated to be safe on chrome, brass and stainless steel; spot-test delicate finishes first.
Is it safe on natural stone?
Spot-test first and avoid unsealed marble or granite.
Real Reviews
What customers say.
4.5 out of 5 · 20 verified reviews
FAQ
Questions, answered.
No — it is non-abrasive and safe on glass, leaving a streak-free finish.
It is formulated to be safe on chrome, brass and stainless steel; spot-test delicate finishes first.
Spot-test first and avoid unsealed marble or granite.
It breaks the mineral bond instead of masking it, so buildup wipes away instead of returning.
Orders ship in 1–2 business days, with free U.S. shipping on orders over $40.
Every product is backed by a 14-day satisfaction guarantee. See our returns policy for details.
No questions match your search.
Commercial & Professional
Ready for working environments.
Consistent, bulk-ready and formulated for the demands of professional cleaning — the same performance, at scale.
- Hospitality
- Property Management
- Restaurants
- Marine
- Automotive
- Janitorial
- Facilities
Technical Information
The details.
Specifications
- Size
- 10 oz
- Form
- Ready-to-use spray
- Contains
- Diamond Magic technology
Documents & certifications
Related Learning