Your customer is using a 620R to deliver fluid to a 25 liter bottle. He calls you and says the delivery rate has a lot of pulsation at the delivery pressure he is operating. If the bottles are not seated exactly in the holder, which happens often the first pulse of fluid from the pump knocks the bottle of the conveyor and the expensive solvent goes all over the floor. The solvent doesn't hurt anything but they have to have an operator watch the fill line constantly. What suggestions do you make?