2nd stage exhaust

[DA Aquamaster]

This is getting off track slightly, but isn't the one of the reasons for a low volume mask so mask is closer to your face and therefore you have an increased field of vision?

Getting a frame of a given size closer to your face improves the field of vision, but there is a chicken or the egg thing occurring here.

An old tri-vew mask was large volume but had a great field of vision. The trick then was to create lower volume masks with an equally and acceptably wide field of vision. This has been achieved with modern mask designs and skirt materials, but what has still been achieved is a wide vision mask with low volume, not a wide vision mask - we already had those.

The side effect however has been a sacrifice of the ability of a larger mask to deflect bubbles.

 

[minervamar]

My wife and I dive Sherwood Blizzards with the wide "walrus" exhaust Tee. If it were not for the sound of the bubbles I wouldn't know they were coming out.

Pete

Yes, Sherwood long exhausts vent bubbles away from the face.
These exhausts are longer than any other standard ones I know of.
(Scubapro long exhaust pieces do not come standard)

As Partridge said the WOB theory is not valid because bubbles
have a habit of bubbling up to the surface all by themselves.

 

[tzeyap]

Hoosier has just posted photos of the exhaust extender for the smaller case Scubapro second stages. Check out the link below :

http://www.scubaboard.com/showthread.php?t=116731

 

[WarmWaterDiver]

They've disappeared from the Scubapro UK web site - not a good omen . . .

 

[thomjinx]

DA Aquamaster said:
<The bubble interference problem is ironically greatly exacerbated today by the simultaneous increased popularity of smaller second stages (with commensurately smaller exhaust tees) and the increase in popularity and sales of smaller low volume masks. >

I totally agree!

I have an Oceanic Titanium reg that I love for its light weight, but I had a problem with the bubble interference from the narrow exhaust tee.

So, being a DIY kind of guy, I took off the little removeable exhasut tee and added a couple of 'exhaust pipes' to the tee that I made from relatively thick-walled clear plastic tubing. They extend about 2 inches to each side. To attach them I used hot glue at first, until I was sure I had the shape and configuration I wanted. Then I used super glue (it was developed from barnacles!) and marine epoxy for a more secure connection. I tested it in a pool first and just got back from a trip to Cozumel where I dove with it in real life situations, including heavy current.

So far, it seems to work great! The bubbles come out to the side of my mask, the tubing has enough flex to take bumps without damage, and it doesn't add appreciable weight to the reg. As an added plus, you can see the bubbles traveling through the clear tubing on the way out. haha! It looks pretty cool.

I am at work now, but I will post pics tomorrow.

BTW, this is an Oceanic Delta, and there is a Genesis 2nd stage that is identical to it. I don't see why this idea wouldn't work with other designs as well.

Chok di,
thomjinx

 

[D_B]

What I did to one to make it fit a G250HP (thanks for the part Tzyap) http://www.scubaboard.com/showpost.php?p=1596772&postcount=34

 

[mfalco]

I know this is an old thread, but I found it searching for something else. My dive buddy uses a OCEANIC OMEGA II/CDX5 REGULATOR. The exhaust comes out a few inches away from your mouth. it is very unique looking also.