Avon FRB 380
Turns out it was an Avon FRB 380, not an R380, it's mine now.
Tubes and floor are in great shape, no patches. It does have pressure relief valves on the air chambers so they can inflate using a SCBA tank. One of the relief valves is stopped off because it has a slow leak, see the attached photo.
Has anyone ever taken one of these valves apart? I'm hoping there is some dirt in there that is causing the issue and once cleaned out it will be back to normal.
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