Although tap water looks clean, it actually contains lots of dissolved chemicals and minerals. 

These amounts vary from area to area (hard and soft water areas). It is these minerals, mainly calcium and magnesium, that leave a white residue on the glass. The water purification technology de-mineralises and de-ionises tap water to remove these impurities and produce pure water. 

Reasons why pure water is better

Water strives to return to its impure state. Therefore it actually absorbs dirt particles from the glass, aiding the cleaning process. Because of the aggressive strength of pure water you do not need to use soap or detergents on windows. This saves time and is kinder on the environment. 

Brushes are mounted on extendable poles which means we can clean windows at height from the ground without using ladders. Water is purified and pushed up through the poles to clean the windows up to 65 feet high.