LNG engineer Bechtel posted a video of the inside of Tank B on the Queensland Curtis LNG project.
The hydro test involved filling Tank B with seawater, up to the 19 metre mark over several days — eventually holding 94 million litres of water.
Once it reached the 19-metre mark, the water was allowed to sit for 24 hours to ensure the integrity of the tank foundations.
Then members of the tanks team worked around the clock to scrub the walls with 80,000 litres of fresh water as the tank was slowly drained.
Over the next five months the tanks teams will continue to prepare the tank in readiness for first LNG.