Abstract: A novel, useful and nonobvious fuel purifier has been developed which in one aspect has a hollow vessel with an interior space, an inlet for liquid fuel contaminated with contaminating material denser than the liquid fuel, the liquid fuel entering the inlet into the interior space in a first direction, and an outlet from which liquid fuel flows out from the hollow vessel, a flow diverter adjacent the inlet within the interior space for diverting the liquid fuel in a second direction other than the first direction, at least one divider apparatus within the interior space of the hollow vessel which divides the interior space into an inlet chamber, at least one intermediate chamber, and an outlet chamber, the outlet in fluid communication with the outlet chamber, the inlet in fluid communication with the inlet chamber, the at least one intermediate chamber providing at least one quiescent zone in which the contaminating material settles out from the liquid fuel contaminated with contaminating material, a drain i