a suitably sufficient support structure that allows the apparatus to be unattended the support structure may support the apparatus from below or may support from above both of which permit the apparatus to be elevated and off the ground a representative support structure is illustrated in fig1 showing apparatus 10 mounted on a plurality of tubular legs 62 supported by beams 66 and braced with cross brace members 64 beams 66 are shown with raised ends that facilitate further movement of the apparatus when positioning on the ground alternative shapes than what is shown for legs beams and cross brace members are also contemplated in addition wheels or rollers may be provided with the support structure for ease in moving the apparatus during or between operations said features are included when appropriate or desired the size of the apparatus 10 excluding the support structure is determined by its application for long term use in which the apparatus is to remain unattended for longer periods of time the apparatus particularly its container will be suitably sized to contain a large quantity of material that may be discharged over a number of hours days weeks months or more for short term use the apparatus may be stationary or may be mobile either having its own powered mobility or by placing on a mobile carrier e g cart flatbed truck or the like to operate at various predetermined time intervals the motor assembly may be suitably programmed and controlled by the control unit as needed in addition the programming may in certain embodiments be performed remotely operation of the discharge unit via the motor assembly.