Tip #3: Don’t Wash Windows with Water from the Garden Hose
While it may seem like the logical way to clean exterior windows and quickly remove surface layers of grime and dirt, using tap water from the garden hose to clean windows may permanently damage glass.
The hard minerals found in tap water adhere to the porous surface of glass quit easily, and in some cases form a permanent bond. This also occurs when pressure washing your house or deck, so be careful to not hit the windows and if you do, have them cleaned or dried quickly.
