Professional window cleaners, particularly those who work on commercial properties, do not tend to knock and ask you for a bucket of water. Water-fed systems and purification systems are an essential tool for all discerning professionals.
Water-fed poles and brushes allow you to reach tremendous heights without any loss of upward pumping water-pressure, while your feet remain safely planted on the ground, whilst resin and filter systems ensure that water used is purified, leaving your work gleaming and streak free.