Common Sewer Scope Inspection Defects
Below is a list of commonly found Sewer Scope Inspection defects:
Pipe Collapse In extreme cases of root intrusion or if significant soil settlement has occurred due to offsets or a low area, complete pipe collapse can occur. A pipe collapse could require a full excavation to repair the sewer line. Another possible cause of sewer pipe collapse is if heavy equipment has been moved across the sewer line. While total pipe collapses are rare, this condition can be identified and assessed as part of a sewer scope inspection.
Debris How many stories have you heard about kids flushing toys or other objects down the toilet? This happens all across the US every day. Sometimes these toys don’t make it all the way to the city sewer lines and get stuck in the home’s sewer lines. Over time these objects will start backing up solid wastes and eventually cause a total sewer line blockage. Sometimes a blockage happens on a new construction house. Construction debris or other items are washed down the sewer line but do not make it to the city line. These items then dry and harden in the sewer line or become lodged in the sewer line. Just like the toys, these items will start blocking the solid waste and preventing the flow of waste through the pipe.
Low Areas A low area in the sewer pipe is also known as a ‘belly’. The belly will collect water and other items as they travel down the sewer line. This low area also causes poor flow through the pipe and can lead to back-up and damage to the pipes.
Offsets On some older sewer lines, sections in the piping can become separate over time. The pipe separation will cause an offset in the piping to occur. Solid waste may not clear this offset, and wastewater will seep into the surrounding soil, causing further settlement and eventual breakdown of the piping. Sometimes the offset gets so bad that it catches solid waste, leading to an eventual blockage.
Tree Roots Tree roots love sewer lines. The sewer line is a constant flow of water and nutrients for the tree. The tree roots enter the sewer line through small gaps in sections of piping. As the roots grow, the pipe can break and crack, requiring repair. Minor tree root intrusion can be rooted and cleared regularly with minimal or no significant pipe damage. The issue with just rooting or cutting out the tree roots is they will grow back bigger and stronger. Assessing the amount of root intrusion is part of a sewer scope inspection.