Case Studies

Case Study 1

Tank Repair and Lining

AIPS were contracted to fibreglass line five existing fibreglass tanks.

3 x 55KL, 1 x 30KL and 1 x 25KL. All were single skin fibreglass Envirotanks. The concrete above the tanks was cut and excavated to expose the tanks. New manways were installed and used for tank access.

One tank (a failed E10 tank) which had a remote fill box fitted above the tank so the only option to gain access to this tank was to use the existing manway. This tank had been out of action for approximately 18 months. The turbine for this tank had already been removed and the product line capped both at the Turbine end and each of the pumps. This E10 tank had many holes and cracks – see attached photos – all were repaired and then the tank lined.

During the excavation process fibreglass pipework was uncovered. All was removed and replaced – see attached photos. The integrity of all tanks and new pipework were tested and all of our work passed.

Case Study 2

Tank Cleaning and Lining

AIPS were contracted to fibreglass line 6 x 42KL steel tanks. All were STP steel tanks in the order of 40-50 years old. The concrete above the tanks was cut and excavated to expose the tanks. Manways were fitted to gain access into each tanks for the cleaning and the lining process.

The E10 Abandoned tank was extremely dirty and full of rust. Dip tube and all pipework below 400mm was corroded beyond recognition. During testing it was noted the Dip tube risers on two tanks needed replacing when the pipework is being replaced. The integrity of all tanks passed testing.

Case Study 3

Tank Lining

AIPS previously fitted a new manway and turret on this tank. On integrity testing this tank failed pressure testing so AIPS did a single lining (5-8mm thick) repair on the tank. After lining the tank it was re-tested and passed with flying colours.

 

Case Study 4

Tank Cleaning and Repair

This tank was taking on water so we were asked to install a manway, clean the tank and investigate. On inspection a hole was found at the bottom of the dipstick most likely caused by repeated impact of the dipstick being dropped. The hole was repaired and the tank lined with our proprietary lining system. The tank was tested by a 3rd party company and approved to be put back into service for fuel storage.