entire bathroom slab was 2" below the rest of the floors. it was then filled with a sand and morter mix and tiled. shower pan was 3" below bathroom slab and again filled with sand and morter mix and tiled. how de we go about refinishing the floor so the shower pan is level with the rest of the bathroom floor, which of coarse we want level with the rest of the flooring in the house. also keep in mind that the entire shower stall is being replaced.