The present invention discloses a disc reading apparatus, including a main chassis, a sub-chassis, a spindle motor, a slide unit, and a stopper. In a first aspect, a method for initiating carbonation of a fluid flow in an algae cultivation pond is disclosed. A tang and clevis type assembly mounts the drop away funnel to the template, where the tang and clevis are coupled together with a main stud. A capacitive proximity sensor may be used in detecting external objects in the vicinity of the antenna.