We use a Waterfed Pole System commonly referred to as 'Reach & Wash'. This system involves the use of telescopic poles and 100% pure water, which we filter through de-ionisation vessels, and bring with us. The major advantage of pure water is its desire to return to its impure state; hence its capacity to absorb large amounts of dirt from your windows. This process involves brushing your windows clean with pure water. As such they will be left wet and will need time to dry naturally. This can be a bit disconcerting at first, as obviously this is not what most people are used to.