Drysuit Exhaust more difficult then previous suits

[Luke99]

If you push on the valve and it vents, it's not the under suit

It does not vent right now when you push it

The bubble I had under the valve on the last dive was so large I cant even imagine the undersuit would have been touching the underside of the valve to be honest, but I guess its possible.

 

[grantmac]

Remove the valve, blow in it and you should feel almost no resistance.

Try flushing with fresh water while rotating it and see if it improves. Sometimes a little grit gets caught in the mechanism and what you think is open is actually only partially open.
A shockingly large number of gear issues can be resolved with fresh running water.

 

[happy-diver]

or don't remove the valve and blow through it before taking it to the dive shop