In most developed countries, wastewater management is achieved via the use of a large, underground network of intersecting pipelines and, without regular inspection and maintenance, these networks can rapidly fall into disrepair, with pipelines becoming either partially or completely blocked due to cave-ins, tree root ingress or simply the accumulation of solid components from the media flowing through the pipes, e.g. silt deposits or the growth of fat-bergs.
All of the above scenarios can lead to flooding and, therefore, potentially have severe consequences for the asset holder including, but not limited to, loss of reputation, incurred responsibility for property damage, legal action and high financial penalties.
Current preventative measures include CCTV inspection combined with water jetting, both of which are time consuming and extremely costly.
Tellus Utilities have developed an acoustic system, The ORCA (Obstruction Recognition and Condition Assessment), that can identify the existence, location and even the size of a blockage, in air (gas) filled pipelines.