ive been using fan jets for the last week and tbh i really like them when brushing the glass but rinsing is rubbish or im doing something wrong . they are ok on small windows but larger windows i struggle with getting a good rinse on the glass compared to pencil jets , any feed back guys
what pressure are you running at,i find the higher the pressure the better but you go thru the water faster
also they are better for hydrophobic glass than hydrophilic.
some cleaners have two sets of jets on the brush,one fan,one pencil and just swap in between glass panes to suit