Kevlar Cord

A device that collects water samples at a specified depth without need for purging beforehand. Samples taken reflect only the specific water chemistry at the time and location where the sample was taken. It can also be referred to as an individual or catch sample. This type of sampling is recommended when standard purge sampling is impractical or not efficient. Groundwater sampling relies on the principle that groundwater is characteristic of the water outside the well at that depth.

The 428 BioBailer and 429 Point Source Bailer require a suspension line for raising and lowering the bailer. It is recommended you use a Solinst 103 tag line- this can be attached to the bracket at the top of the sampler. A sample release device is included with each bailer, and discrete interval sampler, to help with transfer to a sample bottle. The 425 Discrete Interval Sampler includes tubing, of a specified length, that is attached to the sampler for raising, lowering and pressurising the sampler. The tubing is on a reel with fittings to allow the sampler to be pressurised using a high-pressure hand-pump.

Samplers should be slowly and gently lowered through the water column, to create as little mixing as possible, and the sample collected for the desired depth is representative of that depth. And in the case of the 428/429 bailers they should also be gently raised to avoid the check balls being dislodged and the sample contaminated. For all samplers it is recommended a sample release device is used.

• Lower cost for instrumentation
• Faster sampling
• Little/no water agitation
• Simple
• Allows sampling in wells with small water volumes
• Variety of sample sizes
• Can be used to identify stratified layers of water chemistry in wells/boreholes

No, Solinst certifies that PFAS is not used, or knowingly present in the manufacturer, or production of their products. www.rshydro.co.uk/files/Solinst-PFAS-Statement.pdf