An air-blow valve configured for clean-in-place capability is provided. The electrode is designed as a cathodically polarized tool electrode. The diluent delivery system includes a flowmetersolenoidcheck-valve assembly. A third terminal is coupled to a reference voltage. The systems and methods also provide convenience of operation, flexibility to meet different user-selected requirements, and transportability and ease of manipulation, that enhance the quality of life of the individual that requires chronic neuromuscular stimulation. The clamp arrangement mounts to the panel by sliding the bracket downwardly through an open-ended slot defined in the panel until the tab is received within a cutout portion of the panel to secure the bracket to the panel.