,[Editor] From their video description: [/Editor]
DeWind One-Pass Trenchers can install complete DEEP Groundwater Collection Trench Systems in a Single Pass Under the Groundwater Table! No Open Excavations-No Dewatering – No Pumping- No Treating discharge water- No Sheeting or Shoring- minimal spoils….Fast and Safe installs up to 50 below grade. [Source: YouTube. Image: YouTube]