I don’t like doing em they are dirty horrible ball ache jobs i only do them for regular customers,I do better cleaning their windows,why anyone would want to go round canvassing those jobs is beyond me. I’ve had the vac 5 years and I hate using it maybe I’d like the new sky vac the base section looks like it’s more secure to the base pole but the one I have makes my testicles ache when using it,I get it out the van dirty it up a bit then clear most by hand 🤣🤣🤣🤣 💰