Even though it looks like it, water is not the same everywhere. In some places, it's soft and you can't wash off the soap for a long time, and in some places, it's so hard that it leaves stains on the glass surface during cleaning. And once those stains dry on the surface, the cleaning will be the most unpleasant action you'll have to perform. In fact, the hard water stains are nothing special – just some calcium deposits or lime scale. But this doesn't mean that they look nice on our windows, and that we should let them stay there. True, at first, they will be almost unnoticeable, but with time the build-up will be bigger and bigger, and at some point, you'll start noticing a thick white glaze on the surface. And if you don't act quickly, you may never be able to remove it without damaging the window glass, because the sun will bake them and make them permanent. So, to remove the hard water stains from your windows, you'll need to act quickly and precisely. Here are a few tips which should help you fulfil this project.
1. Prepare the cleaning solution. In this case the only cleaning products you'll need are vinegar and water. Mix one cup of vinegar and one cup of water in a bowl. It's best if the water is warm, because this will help remove the build-up more quickly.
2. Soak a towel in the solution. Many people use old newspaper to clean windows on a regular basis, but the newspaper ink can dissolve from the solution and leave very unpleasant marks on the glass. This is why I personally prefer to use a towel. The benefits are, that you can use it more than once and you won't have to worry about small pieces of paper sticking to the window. Just make sure the towel doesn't leave any lint behind, because this would be bad.
3. Apply the solution. Next, you'll have to press the towel onto the hard water spots you want to remove. For the vinegar to start working, it will need to stay on the surface for at least a minute or two. Some people, who are dedicated to achieving good cleaning results, even leave the solution to soak for half an hour or so. The acidity of the vinegar will soften the calcium deposits, and this will make them a lot easier to clean. All it needs is some time to work, and then you won't have to spend time scrubbing, wiping and swearing. If you want, you can also try to drape the towel over the window, because this way it will be hanging and won't fall on the ground. This way you can leave the vinegar on the window surface for as much as you need, and you won't have to be there to hold the towel.
4. Wipe off the stains. Once the solution has had the time to work and dissolve the hard water stains, it's time to remove the leftover dirt. To do that, just press the towel and wipe the window until all the spots disappear. If the stains are there from a long time, you may have to repeat the entire process a couple of times, until you get the results you need.
5. Dry the window. Last, but not least important, you'll need to dry the window once you're done cleaning it. If you don't, you risk seeing new hard water stains the next time you look at the windows. If you want, you can also make the windows shine by using a window spray.