Vacuum boom tube and hose design options for Vacall AllExcavate hydroexcavation models from Gradall Industries generate up to 27 inches Hg and 5,800 cfm. A full-length rubber hose with gum-rubber lining runs from the turret mounted on the debris tank to the pickup point. A steel tube-in-tube boom and intake connects to an identical rubber hose elbow that leads to the pickup point and allows for wear rotation and replacement at the 90-degree elbow. 800/382-8302; www.vacallindustries.com.