i know alot of the window cleaners do this as an extra service.
im looking into it as a service for myself to provide to along side the wc.
i see most use the northern tools gutter 'U' bend attachment and the telescopic lance.
i was wondering, does it not make a huge mess of everything? i can ust imagine a crud filled gutter getting blasted with 1500+ psi and the black crud going all over the brickwork and onto anything else close by.
thanks
ian