Abstract: A technique for detecting a pathogen in drinking water. The technique utilizes a water sampler to periodically divert samples from a drinking water supply. A detector is used to determine the presence of a pathogen in the sample and to provide a signal to an appropriate warning device.

Abstract: A supply device for liquid analysis apparatus including a probe and a sample container, said probe and said container being relatively movable with respect to each other whereby liquid carried within the container may be removed by said probe when the probe is disposed within the container, said probe including a takeoff conduit with a valve disposed therein, rinse fluid supplied to said conduit through said valve, said valve preventing rinse fluid from entering said conduit when the sample is moving from said container through the probe, said rinse fluid flowing through said conduit and at least a portion thereof flowing out of said probe when said valve is opened, thereby cleansing the conduit and the probe.