Geoprobe Systems announces the release of the Macro-Core Liner Extractor for model 5400 series direct push machines. The liner extractor bolts directly on to the probe machine, requiring no modifications for operation. The line extractor is designed to remain out of the way while samples are bring taken, and a shear-pin feature keeps the operator from using the extractor in unsafe conditions. It is said that stuck MC liners can be extracted easily and quickly while sample integrity is maintained throughout the process.