Pedro moves some water

Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.

After looking through the provided items, Pedro declares that he knows exactly what to do, but that it will take most of his time. He begins using the tape to line the tray, lecturing Nuno about the importance of preparation. Once he’s finally made the tray waterproof, he scoops as much water as he can into it, and walks it down to the bucket. Pedro transfers 3.584 litres of water and earns fourth place.

(Written by Jenny R and proofread by Karl Craven)