Sanitary Sewer Operations: Blockage Removal

In sanitary sewer operations, blockage removal is perhaps the most demanding and highly visible. For purpose of this discussion a blockage is defined as the “stopping or interruption of sanitary sewerage flow.” These can be temporary events that stop flow for a short time, allow the “weeping” of water to filter through solids, or it can cause a sewer spill when water backs up and relieves at the lowest point in the system via manholes, cleanouts, or plumbing systems inside structures.