The client asked Mecatecsub for support in underwater technical services for the inspection, cleaning and maintenance of submarine outfalls located in the cities of São Sebastião, Ilhabela and Ubatuba on the North Coast of São Paulo.

Challenge accepted, the first stage of the services was the analysis of the climatic and geographic characteristics of the outfalls, the definition of logistics and technical procedures adopted for each service.

We used the vessel Mecatec, equipped with sonar and a complete diving system approved by the Brazilian Navy. Our technical divers located the outfall, identified the position of the outfall and inspected the entire length of the outfall, checking the condition of the nozzles and piping. Our team also removed the cases and proceeded to open the blind flange at the end of the outfall, removing sediments and other obstructive materials for better drainage and relief of the system. After the cleaning procedures, the cases and blind flanges were reinstalled.

Once the underwater activities were concluded, the respective photographic and video reports of each outfall were prepared and sent to the client, with the numerical and detailed identification of each diffuser nozzle for better control and planning of future inspections.