Soak Glass in White Vinegar
Wearing gloves, Roberson says to dip paper towels into the hot vinegar and stick them to your shower glass. "The slightly acidic nature of vinegar allows it to soak into and loosen the mineral deposits," he says. Let the vinegar sit for 30 to 60 minutes, then remove the paper towels.
Unfortunately, not every hard water stain can be removed. If that is the case, the window will need to be replaced. Replacing a window, mirror, or piece of glass can be extremely expensive, so if you see a potential problem with hard water, act quickly!
Distilled White Vinegar and Lemon Juice
Let the cleaning solution work on the stain for about five minutes. Use a microfiber cloth to rub the stained area until the stain is gone. Rinse the area with a clean camp cloth. Dry the glass.
Regular glass cleaner won't help at all. We tried both Windex-style ammonia-based window cleaner, and also vinegar-based auto glass cleaner and found that neither has any effect on the stains.
It's important to note that while Magic Erasers are generally safe for use on most glassware, it's always a good idea to test a small, inconspicuous area first to ensure that the surface isn't damaged or scratched by the abrasive foam material.
Using WD-40®: WD-40® Multi-Use Product is great when it comes to mirror cleaning and water spot removal. It is easy to use and all you have to do is spray the liquid on to the affected area and wipe it clean with a clean cloth. It will leave your glass windows and mirrors sparkling clean and as good as new.
A simple cleaning fix for a limescale build up on glass is to use a solution of white vinegar and water. Simply mix a solution of equal parts water and white vinegar and spray it on the affected surface. Leave it to sit for a few minutes before wiping away and buffing the surface with a dry microfibre cloth.
How do I clean hard water deposits from my drinking glasses? We recommend using a 50/50 solution (equal parts of CLR Calcium, Lime and Rust Remover and warm water) into a glass or porcelain bowl. Apply solution to the affected stained areas of the glasses using a damp cloth or sponge.
Vinegar. Vinegar is a safe, all-natural household cleaner with the amazing ability to combat hard water stains. Pour some in a spray bottle and squirt any surface where you find hard water stains. Let it sit for five to 15 minutes to give the vinegar time to break down the minerals in the chalky, white stain.
Limescale on Glass
These deposits make the glass appear cloudy and are often stubborn and difficult to remove. If these deposits are left uncleaned they can eventually etch into the glass, causing permanent damage.
The abrasive used in BKF will not scratch glass or porcelain when properly used.” — Bar Keepers Friend FAQ.
Magic Erasers can be used dry, but adding water to the sponge will help it absorb dirt. You should perform a spot test before you use the Magic Eraser, as the very fine, sandpaper-like surface can alter the finish on some surfaces.
Forget the fact that these spongy pads feel plush; they're actually insanely abrasive. That's why you should avoid using it on granite and marble counters (and any other fine stone surfaces), or else you'll run the risk of removing the sealant and making the surface appear dull.
Magic Erasers don't magically erase everything — here's where not to use them: Shiny painted, enameled, sealed, or varnished surfaces. Magic Eraser can strip away the finish.
Use Dawn and some hot water and a cloth or sponge to get into those nooks and crannies where grime and scale tend to build up. You can also combine Dawn with vinegar for stronger cleaning power, especially when tackling hard water stains.
For really tough hard water stains, try scrubbing with some hydrogen peroxide. Yep, the same stuff you have in your first aid kit. Hydrogen peroxide plus some elbow grease should banish even the most stubborn of hard water spots from your metal fixtures.
Grab a spray bottle and mix equal parts water and vinegar (you can also add a teaspoon of Dawn dish soap for more clinging power). Spray the solution on the bathtub stains, let it sit for at least 15 minutes, then wipe clean. Let the solution sit longer depending on the severity of the stains.
Benz Oxy Cleanze is the simplest, easiest and safest way to rapidly remove limescale from window class. No hard scrubbing or scraping required.