I done an external house clean today, along with a gutter vacuum and a gratis window clean. It took me a shorter time than I thought to complete at just 2.5hrs for £200! Im glad the couple left in the car while I was finishing up as it does look bad ! I sprayed on the chloride via my xjet and will leave the wind and rain to rinse it clean. The thing is when you clean an external pebble dash house with bleach it often looks worse than when you started. Therefore I left a note to explain to the customer that it will clean up after each rainfall!