If you live in an area that has high TDS (total dissolved solids) water, then you’ve probably noticed white chalky spots on windows out and about, or maybe even some on your own homes windows. These are most likely hard water stains.
Hard water stains are mineral deposits left on glass, usually from water from your irrigation system. These stains are caused by high calcium levels in the water, leaving behind a chalky white residue on your windows. Other minerals like iron, and manganese can also cause staining, although these typically manifest themselves in different ways.
In Orlando the most common hard water stain we see on windows are calcium based hard water stains. The Florida water supply has high mineral content, so you can guarantee that if your sprinklers are either directly or indirectly hitting your windows you will eventually end up with those pesky hard water stains.
Professional window cleaners use two ways to remove hard water stains. Which method is used is determined by the stage of hard water, or how bad the stain is. Abrasives are better for mild stains, and acids are used for the toughest of hard water stains.
Depending on the stage of the hard water stains on your homes windows, abrasives are typically the safest and most effective way to remove staining. Abrasives are a mild chemical solution that holds micro abrasives which remove hard water stains without scratching the glass.
For the worst of the worst hard water stains, a more powerful solution may be needed. That’s where acid comes in. An acid wash can effectively restore some of the most stubborn stains. Though this is a last resort, for us at Heatwave Window Cleaning.
Yes. Given long enough hard water can actually etch your glass. This means that neither abrasive or acidic applications can remove the stains. This kind of etching usually occurs after years of neglect, that's why it's important to have your windows cleaned regularly and to prevent hard water stains.
Hard water stains can be tricky to remove. Heatwave Window Cleaning has years of experience removing hard water stains from windows all over central Florida. Call us today to receive a custom quote, so we can clear up your view.
