The Grundoburst static pipe bursting system from TT Technologies is ideal for the replacement of water lines. Pulled by a hydraulic bursting unit, the cutterhead’s special cutting wheels split the host pipe. An expander displaces the split pipe into the surrounding soil while simultaneously pulling in the new pipe. The Grundoburst can pull in a variety of pipe including PVC, DIP, ABS, cast iron, and HDPE. Six models are available for bursting 2- through 54-in. pipes and larger. Patented QuickLock bursting rods are linked together not threaded, saving time, preventing twisting and extending the life of the cutterhead.