Found these strange dirt-like veins running up my basement wall. They crumble when touched but seem hollow inside. Do I have a leak or something else?

immediate action to prevent further damage. Limit disturbance to the tubes, as termites are sensitive to changes in their environment and may relocate.
Contact a professional pest control service to conduct a thorough inspection and confirm the presence of termites. Meanwhile, examine your home for other signs of infestation and monitor the affected continue reading …