Envco – Environmental Equipment

The Solinst Point Source Bailer has dual ball valves, top and bottom. This prevents a sample collected at a discrete depth from mixing with water from other depths during retrieval. The Point Source Bailer is a simple and cost effective device for aquifer profiling. It needs no costly or hard to transport ancillary equipment, making it ideal for point source sampling in hard to access locations. The miniature 0.5" (12.7 mm) diameter model is ideal for use in narrow tubes and direct push devices.

METHOD OF OPERATION
The bailer is lowered slowly to the desired sample depth on a support line. As the bailer is being lowered, both ball valves open, allowing water to flow through the sampler. On reaching the sampling depth, the bailer is raised using the support cable and optional winding reel. The weight of water and upward movement of the bailer keep both ball valves closed. The top ball valve prevents the sample in the bailer from mixing with water at higher levels in the borehole.

Once at the surface, the bailer is emptied by opening the top vent, and allowing the water to drain slowly through the sample release device into the sample container.

The Point-Source Bailer can then be decontaminated before taking the next sample.

SPECIFICATIONS
The Point Source Bailer is constructed of stainless steel with Teflon ball valves and Viton o-rings. The sampler comes complete with a stainless steel sample release device to avoid loss of valatiles during transfer to the sample vial. The standard support line is stainless steel. Teflon coated steel support line is also available. If desired, a storage and winding reel is available on which to store the cable.

Point Source Bailers come in 2ft. (610 mm) length as standard or an optional 4 ft. (1220 mm) length

Viton & Teflon are registered trademarks of Dupont Corporation.