DUI 400g Thinsulate Jumpsuit - Slow Venting?

[mahjong]

Has anyone worn the DUI 400g Thinsulate Ultra jumpsuit (the pre-XM450 model with purple sleeves) and found that venting air through the arm is difficult? If so, does anyone have any solutions? I'm tempted to puncture a couple holes in the suit on the left upper arm.

 

[Ben_ca]

Nope.. no problems venting at all. Vent early and often. Get into a good rhythm of dumping gas from your suit and BC... Are you sure its your undergarment that's the issue? Sometimes those exhaust valves do get sticky.

 

[andrewy]

Ben, i actually made some holes

 

[Rainer]

It does vent more slowly than other undergarments I own, but if you stay on top of it, no big deal. I didn't modify mine.

 

[mahjong]

I have DUI's heaviest Polartec Powerstretch jumpsuit (worn for years and now find it is just not enough, esp in a shell suit--still fine in compressed neoprene), I have a Northern Diver Metalux 300 (not enough in a shell suit, fine in compressed neoprene), I have rented and worn once the DUI XM450 (BEAUTIFUL suit, the Cadillac, but not ready to spend 500+)--all vent quickly and smoothly with a bump up of my arm. I dove yesterday (Lobos) in my new DUI 400g jumpsuit and found the venting noticeably slow and difficult--had to labor to get the air out (VERY warm though!).

Nope.. no problems venting at all. Vent early and often. Get into a good rhythm of dumping gas from your suit and BC... Are you sure its your undergarment that's the issue? Sometimes those exhaust valves do get sticky.

 

[mahjong]

I think I'll give it a few dives before I modify, and add a couple pounds of weight. I'm not sure how much holes would help anyway, if the air is being trapped within the fibers. I think I can get used to the slow venting, and maybe the venting will improve after the fibers get broken in a bit.

It does vent more slowly than other undergarments I own, but if you stay on top of it, no big deal. I didn't modify mine.

 

[Wayne at DiveSeekers]

I have heard others complaining about the venting efficiency on the DUI 400g as well. This is probably going to sound dumb, but what drysuit are you wearing? Reason I ask this, some other manufacturers, Not D.U.I., are putting their valves in the wrong location and this leads to poor venting efficiency.

Here is a photo of what I am talking about:


Valve needs to be on outside of bicep!

Just thought I would give another possible reason!

 

[PfcAJ]

I dive with the 400g all the time, just takes practice to get used to it. I wouldn't modify it, esp not with holes.

 

[coldwaterdufus]

That picture is exactly my problem. Funny thing, it's also a Bare. Great suit , except for the hard to vent issue.

 

[lv2dive]

I just spend the weekend switching between a Whites MK2, DUI 300g, and a DUI 400g, bc my drysuit was leaking every dive... I definitely noticed an efficiency difference re venting with the 400g. I don't think holes are going to make a difference, however, I think it's just a matter of learning how to manage and/or "stay ahead of" the adjustments when wearing that type/level of thermal protection.