The ESP pulls a 3 (or 4) foot long by 0.8 inch diameter sample in one plunge. It captures every sample in a plastic (or stainless steel) liner and can sample to 3 (or 4) feet (30 feet with extensions). Sampling tube is driven by a 12.5 pound drop-hammer (or electric hammer) and retrieved with a foot-operated jack.
Replacement liners for JMC 18 inch Zero Contamination Sampling Tubes available at lower prices when purchased in larger quantities. Click on details for more information.
This extension lets you sample three feet deeper provided you have a ESP Sampling Tube and a JMC ESP Master Extension. Regular extensions connect to each other for additional sampling depth capability.