I just spent the whole weekend working on the boat, doing maintenance an repairs. On the list was to unmount all 4 engine room air in/out vents from the hull to redo the caulk as the PO was a silicon lover doubled with a man wanted to save on caulking, this lead to having silicon on screws but nowhere else and so of course in leaks.
The guys used drier conduit between the vents and the engine room but these are really not very resistant.
So the question here is: What are you using for ventilation in your ER?
Am I too closed minded to think that a dryer tube is not the correct thing?
Thank you for your help and stay tuned as I have now tons of questions