Readers often recount stories of some of the problems they encounter while inspecting or troubleshooting systems. Lately I have had several readers contact me with stories of opening part of a system to find that roots have filled or nearly filled the supply or drainfield piping. Obviously if the piping is filled with roots, sewage will not flow between parts of the system as it should. Over time this results in sewage backups or surfacing.
System piping, sewage tanks, distribution and drop boxes should all be watertight. That means water is not allowed to flow into the system from outside
