Vacuum Clean Weekly Maintenace System 45 Tablets/Jar. The second stage in Palmero 2-step system. Restores pressure, keeps vacuum lines clean, extends pump life. Economical-use, only one tablet each week. Self-activating tablet releases powerful cleaning chemicals throughout the week. Neutral ph helps reduce dispersal of amalgam into sewer systems. Allows consistent vacuum suction and asepsis. Restores suctioning force and extends service duration of equipment. Optimizes the efficiency of vacuums. Ensures against hazardous chemicals. Vacuum Clean is a time-released tablet, the second part of Palmero 2-Step Evacuation System Maintenance.