Patent ID: 8235221

Claim:
A liquid filtering system comprising: at least one filter assembly including: an upper sample reservoir for receiving a volume of sample liquid, a sample filter positioned proximate a bottom of the sample reservoir for mechanically filtering the sample liquid; a lower storage bottle for receiving filtered sample liquid from the sample reservoir; and a vacuum collar disposed between the sample reservoir and the storage bottle for directing a vacuum to below the sample filter so as to draw sample liquid through the sample filter into the storage bottle; a plurality of bases, at least one of the plurality of bases having a conduit for conducting a vacuum from a vacuum inlet port on the base to a vacuum outlet port in fluid communication with the vacuum collar, each of the plurality of bases supporting one of the at least one filter assemblies; and an auxiliary vacuum outlet port for providing the vacuum to additional devices, wherein a vacuum is connected from one of the bases to a vacuum collar on another of the bases.