Working for a wonderful customer in Woodridge this afternoon. Utilized specialized milling machines to extract mud jack foam from three supply lines within the underground ductwork. This preparation was essential for the subsequent step of lining the system. The meticulous removal process ensures that the ducts are clean and clear, optimizing the adhesion and effectiveness of the new duct lining material. This method is critical for restoring and enhancing the functionality and longevity of the underground system.