A manufacturing method for a boundary acoustic wave device is provided which includes, an IDT electrode, a first dielectric layer, and a second dielectric layer on a piezoelectric substrate. A method is disclosed for determining the insertion point for an object at a desired location within tissue of varying types. An electrical incineration system may be electrically connected to a pulsed power supply for incinerating soot collected within the candle. In addition, air flow moving toward the disk pack may be contracted to allow efficient energy conversion from pressure energy to kinetic energy prior to merging of the bypass air flow with the air flow among the disks. In the backwash position, water is drawn through the flooded housing cavity to the suction side of the pump by a shunt.