Ben that was the reason to put the trigger on the pole in the first place, i was fed up having to walk back to the backpack to switch it off, bending down to switch it off is all very well if it is near by and while your doing that your brush is still pumping out water as for the backpack yes never had it on to heavy, for me anyway, i just put the backpack to where i think i need it without having to move it usally on the drive, do all fronts move backpack to end of drive do side and back