An organic forward osmosis system includes an acid treatment stage comprising an acid treatment operation configured to produce an acid treated, digester centrate stream in a forward osmosis reject loop and a fertilizer stream. This invention is directed to load leveling weight distribution hitches with enhanced strength and which are easy to install and adjust, without the use of special tools or equipment. The single integral piece of ductile sheet material has a plurality of longitudinally spaced apart apertures and a plurality of longitudinally spaced apart sheet material portions between the apertures and the ductile sheet material is bent at a plurality of longitudinally spaced positions such that each sheet material portion defines one of the plurality of flow directing vanes. An antenna electric supply part is provided to supply an operating current from the second circuit board to the antenna. A buffer amplifier is adapted to perform an impedance conversion upon a voltage at the first terminal of the capacitor to generate an output voltage at an output terminal.