If this is just an isolated case (1 ventilator) I personally would dispense with the old tubing, however if we are talking about all of the connected devices, that's another kettle of fish....
Although I think a revision of the compressor and its filter system should be first port of call, which item failed to allow the moisture to pass ?
I would assume in Singapore air humidity is a significant problem.
Last edited by Malcolm; 03/06/22 2:38 PM.