A method of forming a solution injection bar assembly, the method comprising:
- providing a plurality of cooperating substantially rigid elongated plates, each of the plates defining an elongated outer wall terminating at substantially opposite ends in a pair of spaced apart terminal end portions, a lengthwise upper edge portion that is extended between the terminal end portions, and a lengthwise lower terminal edge portion that is spaced apart from the lengthwise upper edge portion, and the lengthwise lower terminal edge portion of at least one or more of the elongated plates further comprising a substantially planar surface that is extended between the terminal end portions thereof;
- forming a substantially planar cooperating interior face on each of the plates opposite from the respective outer wall thereof;
- between the cooperating interior faces of the elongated plates forming an elongated upper cavity adjacent to the lengthwise upper edge portion thereof and bounded on three sides by the lengthwise upper edge portion and spaced apart terminal end portions of one or more of the plurality of cooperating plates and defining an elongated upper solution distribution and pressure equalization chamber, the elongated upper cavity further comprising a length dimension, a height dimension and a depth dimension with the length dimension being significantly greater than the height and depth dimensions;
- forming a cleaning solution inlet orifice in the outer wall of one of the plates or one of the terminal end portions thereof, the cleaning solution inlet orifice being arranged in fluid communication with the elongated upper cavity for injecting thereinto a flow of pressurized liquid cleaning solution;
- between the cooperating interior faces of the elongated plates forming a cleaning solution flow restrictor in a position substantially bounding the elongated upper cavity on a fourth side thereof opposite from the lengthwise upper edge portions of the plates and extended between the spaced apart terminal end portions substantially contiguous with the elongated upper cavity along substantially an entire length thereof;
- between the cooperating interior faces of the elongated plates adjacent to the substantially planar lengthwise lower edge portions thereof and in fluid communication therewith, forming an elongated lower solution discharge chamber that is extended between the spaced apart terminal end portions of the plates substantially contiguous with the cleaning solution flow restrictor, the elongated lower solution discharge chamber being spaced away from the elongated upper cavity by the cleaning solution flow restrictor and in fluid communication therethrough with the elongated upper cavity;
- and
- interconnecting the plurality of elongated plates in a solution injection bar assembly with the substantially planar surfaces of the lengthwise lower terminal edge portions arranged in a substantially coplanar relationship and forming an elongated and substantially planar cleaning head operating surface that is extended between the terminal end portions of the plates, and with the cooperating interior faces of the plates arranged in a mating relationship and forming the elongated upper cavity in fluid communication with the elongated lower solution discharge chamber through the cleaning solution flow restrictor positioned substantially contiguously therebetween, and further with the elongated lower solution discharge chamber in substantially continuous fluid communication with the elongated and substantially planar cleaning head operating surface.