In the realm of housework, hard water stains rank high on the list of enemies in my home. Living in an area with hard water, these stains are devilishly difficult to remove (and incredibly quick to appear). But don't worry: By the end of this guide, you'll be better equipped to make your shower doors sparkle.
 

First, a little science!
 

All city water starts as hard water. Some municipalities treat water with softening systems, removing excess magnesium, calcium, and other minerals before it reaches homes. Soft water has many benefits:

• It can reduce mineral buildup in pipes

• Keep hair and skin properly hydrated

• Help water-based appliances run longer and more smoothly
   

Hard water, while not dangerous, has drawbacks. The most unsightly is what we're here to discuss: when left to dry on shower doors, the water evaporates, but the extra minerals don't. These small deposits build up over time, resulting in a glass surface littered with spots that resist even the most vigorous Windex scrubbing.

That's because Windex can't tackle water stains. To truly remove these spots, you need a highly acidic cleaner. Household glass cleaners like Windex are gentler on glass surfaces. For hard water spots, you'll need a low pH cleaner (low pH = high acid!) to do the dirty work.
 

Before Getting Started
 

Consider safety. Wear rubber gloves when dealing with acidic cleaning projects. While gathering materials, toss in a pair of gloves too!
 

You'll Need:

Depending on your chosen method:

• White vinegar

• Lemons or lemon juice

• Warm water

• Spray bottle

• Rough towel

• Microfiber cloth

• Commercial cleaner
   

Method 1: Vinegar Soak

1. Fill a spray bottle with equal parts warm water and vinegar.

2. Spray the affected area thoroughly. Don't hold back - coat it well. After a few minutes, reapply, focusing on problem areas.

3. Use a rough towel to scrub the water stains. The towel's texture will help loosen and remove spots. Note: This shouldn't be difficult - if it is, start over and let the solution soak longer.

4. Wipe away the solution with a clean towel or microfiber cloth. If possible, rinse with warm water and wipe dry.
    

Method 2: Lemon Juice Solution

1. Take 1 or 2 whole lemons. Roll them on a countertop with pressure to release juice from the membranes.

2. Slice the lemon(s) in half across the widest part. Each half should be round, not almond-shaped. This makes them easier to grip.

3. Use a lemon half as a natural abrasive and sponge. The juice acts as an acid to remove hard water, while scrubbing in circles helps lift stains like a towel or sponge would.

4. Rinse or wipe the glass surface with warm water and a clean towel.
    

Note: Alternatively, mix equal parts lemon juice and water as in Method 1.
 

Method 3: Commercial Glass Cleaner

1. Choose your preferred glass cleaner. Remember: look for low-pH, high-acid formulas.

2. Follow the instructions on the product label.
    

Note: Commercial cleaners often involve stronger chemicals. Ensure you wear rubber gloves before starting. Safety first!

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