Firstly, attach hose and brush to the Guttermaster wand, making sure the shut-off valve at the base of the wand is in the “off” position. Turn water on at the tap.
Fill a large bucket with 8 liters of hot water and add a half tablespoon each of Dawn Dishwashing Liquid and liquid Jet Dry. Apply soap solution to windows using your Guttermaster wand/brush. Then, slowly turn the water on with the shut-off valve to completely rinse off the soap. Allow to air dry. Your windows will be sparkling!