The present invention 10 discloses a cleaning device having a base portion 14 with a peel and stick adhesive 20 underside and a clear permeable topside 22 having a color reactive substance 24 contained therein wherein the base portion 14 further includes a malleable flap 12 disposed thereon. A first flow path fluidly connects the storage tank and the heat exchanger. Polar coordinate data is plotted over the time of occurrence of the sensed PQRST electrogram as at least one of an x-axis vector projected into the reference sagittal plane as a sagittal VCG, a y-axis vector projected into the reference horizontal plane as a horizontal VCG, a z-axis vector projected into the reference frontal plane as a frontal VCG, and an xyz-vector in 3-D space.