A slurry seal assembly for use about a rotatable shaft within a pump between a process side and an atmosphere side comprising: (a) a sleeve configured to be disposed about, in contact with, and rotatable with said rotatable shaft; (b) a rotatable seal ring in contact with a first side of said sleeve, said rotatable seal ring rotatable with said sleeve; (c) a stationary seal ring arranged to form a sealing interface with said rotatable seal ring; (d) a floating bushing seal assembly including a bushing arm, an annular space, an inner ring and a gap, said floating bushing seal assembly configured to be fastened to and extending in the direction of the process side from a gland of a casing of the pump, so as to be non-rotatable with respect to said sleeve, said annular space disposed radially between said bushing arm and said inner ring, said floating bushing seal assembly disposed about said sleeve with said gap disposed radially between an inner annular surface along said inner ring and an outer annular surface along said sleeve; wherein, by means of a fluid inlet channel provided through the gland, the slurry seal assembly is configured to be filled with a fluid such that the fluid traverses through said gap in direction of said process side; and (e) a plurality of slots disposed along a front face at a second side of said sleeve at said process side and adjacent to said floating bushing seal assembly, each said slot being at least one of a depression, a flute or a recess along both said front face of said sleeve and said outer annular surface of said sleeve, said inner ring and said gap disposed about said outer annular surface of said sleeve between said first side and said second side, the slots rotate with the sleeve, the slots are thus rotatable within the process side, and the rotation of the slots allows the slots to interact with the fluid traversing through said gap; wherein said fluid traverses the gap, said plurality of slots and said floating bushing seal assembly cooperate to prevent and resist flow of a slurry in direction of said rotatable seal ring and said stationery seal ring; characterised by said inner ring disposed between said annular space and said gap is movable in an outward radial movement toward said bushing arm and movable in an inward radial movement toward said sleeve. (a) a sleeve configured to be disposed about, in contact with, and rotatable with said rotatable shaft; (b) a rotatable seal ring in contact with a first side of said sleeve, said rotatable seal ring rotatable with said sleeve; (c) a stationary seal ring arranged to form a sealing interface with said rotatable seal ring; (d) a floating bushing seal assembly including a bushing arm, an annular space, an inner ring and a gap, said floating bushing seal assembly configured to be fastened to and extending in the direction of the process side from a gland of a casing of the pump, so as to be non-rotatable with respect to said sleeve, said annular space disposed radially between said bushing arm and said inner ring, said floating bushing seal assembly disposed about said sleeve with said gap disposed radially between an inner annular surface along said inner ring and an outer annular surface along said sleeve; wherein, by means of a fluid inlet channel provided through the gland, the slurry seal assembly is configured to be filled with a fluid such that the fluid traverses through said gap in direction of said process side; and (e) a plurality of slots disposed along a front face at a second side of said sleeve at said process side and adjacent to said floating bushing seal assembly, each said slot being at least one of a depression, a flute or a recess along both said front face of said sleeve and said outer annular surface of said sleeve, said inner ring and said gap disposed about said outer annular surface of said sleeve between said first side and said second side, the slots rotate with the sleeve, the slots are thus rotatable within the process side, and the rotation of the slots allows the slots to interact with the fluid traversing through said gap; wherein said fluid traverses the gap, said plurality of slots and said floating bushing seal assembly cooperate to prevent and resist flow of a slurry in direction of said rotatable seal ring and said stationery seal ring; characterised by