Hi guys Just picked up a job to clean local community center windows and gutters. Biggish building but all single story. 29 double windows and 40m of guttering. Charged 250 cash I'm happy with that. Now the windows are bloody filthy. Upvc frames and sills. They have a garden tap each side of the building. I was going to scrub all frames and glass and use garden hose to rinse crud off the wfp all after. Will save time and water. Hood idea?