A noise event suppression technique for a monitoring system detects a noise event in a signal waveform when a focal sample in the waveform has an amplitude greater than an amplitude of algorithmically determined earlier and later samples in the waveform that are noncontiguous with the focal sample. The pump further includes first and second pressure elements coupled to the elastomeric member on opposing sides. Tubes bent according to the present invention are incorporated into high-purity systems as supply lines, product lines, and vacuum forelines, without the need for post-bend heat treatment or polishing. Discharge from a central or peripheral port is likewise maximized by ensuring all material in the container to the discharge level is fed for reclamation. An optical data transmitter is connected to the operator input to transmit data from the operator input through the axial passage. The metal ion chelating agent provides a metal ion chelating capacity for at least one metal ion on which the tumorigenic bacteria is dependent for viability.