Does anyone know where I can find a parts list for the JD 25-Gallon mounted sprayer LP22861. I suspect the sprayer portion itself is the same as the tow-behind 25-gallon sprayer. The supplied manual does not contain a spares list and JD on-line parts has no listing for the LP22861. I know the sprayers are made by Superior Tech so I checked their website and they don't list any parts information either. I'm not sure why finding parts information is such a mystery.