Hello chaps my first bit of help/ advice I need is that I'm looking for a new brush head seen one on Internet called water genie flagged dual trim 27cm ,now I didn't no whether you can buy any brush head and fit into onto any pole or do they need to be the same brand?? My second bit of help does anyone struggle to reach the sills on some windows that have quite a large angle to them what would you guys recommend on how to reach them?