cheers - yeah will have a look over it but nothing apparent. talked to mark MoZ (thanks mark) and have removed gore vent plug and got an m12x1.5 alloy screw with hex just going to use that like an old skool (and my preferred) vent plug with O-ring.
Oh maybe a stupid question but do you need a special O ring for salt water?? or just any rubber O ring will do?
New pyro 93 (to me) was one of Philip Köster customs with more rocker (it’s sick!) got it from him at margs in Feb. always had board upside down and noticed a small pool of water under the Goretex vent screw. So it must be holding water and taking it in. Any advice from other Severne owners with same issue? Repair or replace vent? Can you do it easily or a job for board repairer? thanks