Window cleaners use water fed pole systems to wash exterior windows for flawless results and ease of use.
The main components of these systems are filters, brushes, hoses and poles. Filters can range from one to several stages depending on the impurities being filtered out. Good filters purge 99.99% of contaminants.
Poles are lightened by materials like carbon fiber and plastic fittings. They telescope and can reach windows up to 80 feet high.
How it works is sediment is agitated with a brush and rinsed with pure water which leaves glass dirt and dust free. Windows remain clean for longer because no residue is left for dirt and dust to cling to.