Started in on the third segment of the ductwork which couples the inlet to the intercooler ducts. Also drilled holes into the cage to mount the inlet section – something I should have done earlier but got away with it. After that, the last top segment was epoxied in.
In the last picture, I found something disconcerting with the fishpond filter housing – see it? When constructed 25 years ago it was carefully leveled to ensure an even water level, but now look at it. Best I can tell, gophers dug under it and it’s now settling unevenly. It’s not a huge deal since the whole fishpond, deck, cover, and filter are coming out, but it is something of a conformation that the system as a whole is nearing the end of its reliable life, with everything wearing out at about the same time.