just started to day with wfp for the first time ive a 350 ltr tank only got 10 jobs done afew had connies and had not been done by wfp before the question is wat fow rate aprox would be suitable iwas running the didgi contrloler 32 any advise would be greatfull 
some good guide given
2lt a min or a 12"-18"inches of water coming away from the brush
does depend of the brush and whicj jets you are using
as well as the pace you work
it wont take you long to find the right balance
when I use pencil jets i set the flow rate 20% lower than fan jets