It went well...

For a project we had to make sure what goes on inside the so-called "Thermoshock" duct.
So we emptied the system and opened the duct at the pumping station.
To take a proper look I had to go down.
So Anne and trainee Jeffrey prepared the cradle for me.

Here in LARGE....

This is inside the duct.
It's integrated in the building, completely made of concrete.

The wood is added to make the flow to go the right way, we have to add some more to it because it isn't devided good enough.