A container including a plurality of side walls, a top, a handle, a bumper, and a substantially planar label surface. An electronic circuit 40 is provided for controlling the current in the armature winding 24, 25 such that periods in which a magnetomotive force in one direction is associated with a first current pulse alternate with periods in which a magnetomotive force in the opposite direction is associated with a second current pulse. A surface of the piezoelectric layer is provided with four-way split inner electrodes S+, B+, A\u2212, and B\u2212. The system also has a storage tank that stores the purified rainwater supplied from the purifier. The plurality of pipelines each pass data on different events.