The Kingdom of Saudi Arabia’s Eastern Province water authority was faced with severe problems in its 600–700 mm gravity sewers.

International Aramoon Corp (IAC) was approached to discuss the project and perform an inspection and condition assessment for the gravity sewers, as well as provide services for pipeline rehabilitation works.

The 2.3 km pipeline was made from ductile iron and located at an average depth of 4 m below the ground in Dammam City.

Extensive cleaning had been completed to facilitate the CCTV robotic inspection and several problems were identified from the pipeline surveys. These included infiltration, wall encrustations, partial blockages and severe corrosion.

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After evaluating the situation, IAC recommended the use of the cured-in-place pipe (CIPP) UV system for the gravity sewer pipelines in order to restore 100 per cent hydraulic efficiency and structural strength of the pipelines.

BKP Berolina-Liner System, the CIPP-UV system supplier of equipment, liners and training, had made the structural calculation and liner design based on the information provided by IAC.

During the preparation and installation of CIPP-UV system, IAC paid special attention to safety precautions, especially when rehabilitating sewer infrastructure in heavy traffic areas.

The CIPP-UV system is designed for fast and efficient onsite installation that minimises the economic, social and environmental impacts.

As demand in the region increases, IAC has said the company is well prepared to meet them and undertake No-Dig works for the wastewater network in Saudi Arabia.