Snaking is typically the technician's initial course of action, and if that doesn't work, they switch to hydrojetting services. For obstinate or persistent blockages, hydro jetting works best since it can thoroughly clear the pipes and stop new clogs from forming. A high-pressure water jet is used in this service to cut through obstinate blockages and hardened material. By reducing the inner roughness of the pipe wall, hydro jetting also stops subsequent jams from forming.