You can get plenty of water flow, in fact too excessive from a rinse bar, evenly spaced water flow along the entire length. Bisell rinse bar is more than adequate with every hole open. So is the new Tucker rinse bar, if anything Tucker uses elongated slits all the way along the rinse bar, which is wider in length than the constructor brush and gives a finer more controlled flow. You can get just as much flow with a Tucker rinse bar as 2 x 3mm jets and yes it is like pouring a jug of water over the window if the flow is set at the right amount.