Hi traveller,
I think this is the third disc puzzle of this type in the game: the aqueduct, the door and this one.
Each time there are more rings. So you have experienced the puzzle already.
The aim is to align the disk so that the outlet all points to the exit.
Use the up-down (or right-left) arrows to select the disc.
Use the enter key to activate it.
There are 5 discs in this one.
Select-enter in this order as fast as you can: purple (2), green (5), red (3), gold (1) and blue (4).
Timing is necessary to get the rings aligned.