The BioTector vacuum sampling system is designed to bring water over a distance of 40 meters with a maximum lift of 6 meters, and to present the sample to the BioTector TOC analyzer or alternative water analyzer at ambient pressure. The operation of the sampling system is controlled from the analyser. The Vacuum Sampler Pump generates a vacuum in the sample container which draws the sample up into the sample container. The Analyzer takes its sample from the container. When the sample has been taken, the Vacuum pump through a series of valves, generates pressur in the smaple container whcih forces the sample from the container back throught the sample line. This cycle is then repeated. Maintenance - Normally every 6 months. Service kits are available for regular maintenance.