An apparatus for wasting flocculant sludge from a clarifier is provided including a wasting pipe fluidly connectable to a waste conduit, a manifold fluidly connectable to the wasting pipe, an upper header for collecting the flocculant sludge fluidly connectable to the manifold, a return sludge pipe fluidly connectable to a return sludge well, a lower header for collecting settled sludge fluidly connectable to the return sludge pipe, and a drive mechanism for rotating the upper header and the lower header about a center axis. A wastewater treatment system is provided including the clarifier fluidly connectable to a source of a mixed liquor and the apparatus for wasting flocculant sludge. A method of separating settled sludge from a clarifier is provided including withdrawing flocculant sludge and withdrawing settled sludge. A method of retrofitting a clarifier is also provided including providing the manifold, the upper header, and the drive mechanism.