Photo courtesy of Vannoy Construction The only steel pipe system specifically designed for Crosshole Sonic Logging (CSL) testing the weight to lift* *compared to traditional schedule 40 the man-hours to install* ZERO need for threading 1.800.773.2368 | www.foundationtechnologies.com SONITEC The CSL Tubeā¢ Resource Centerhttp://www.foundationtechnologies.com