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Discussion of diving methods and equipment available prior to the development of BCDs beyond the horse collar. This forum is dedicated to the pre-1970 diving.
ebj
Lung Diver
Posts: 60
Joined: Tue Aug 23, 2005 12:49 pm
Location: Houston, Texas

Duckbill Eliminator

Sun Jan 09, 2011 5:59 pm

I finally dove my PRAM with the new duckbill eliminator yesterday. I've been diving my RAM the last few times which has a regular duckbill. The difference between the two exhausting air is remarkable. Exhaling with the eliminator is so effortless that I would compare it to exhaling using my conshelf. I found myself having to quit making a forceful breath out and just exhaling like I would with any good single hose reg.
The other great improvement comes when installing hoses on the reg. It is so much easier to put the exhaust hose on the reg when you don't have to stretch it over the duckbill every time.
Ernie

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Drado
Master Diver
Posts: 682
Joined: Mon Feb 07, 2011 6:11 am
First Name: Eduardo
Location: Manila, Philippines

Re: Duckbill Eliminator

Wed Feb 16, 2011 7:11 pm

Hi Ernie,

Was your original duckbill prior to DBE installation the rubber or silicone version?

thanks
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Ed

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Herman
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Joined: Thu Oct 25, 2007 1:45 pm
Location: Raleigh NC

Re: Duckbill Eliminator

Wed Feb 16, 2011 7:59 pm

Gotta get me one or two or 3 of those.

Hi Doc, just realized that was you. Nice to see you here.
Herman

ebj
Lung Diver
Posts: 60
Joined: Tue Aug 23, 2005 12:49 pm
Location: Houston, Texas

Re: Duckbill Eliminator

Wed Feb 16, 2011 9:31 pm

The duckbill was all silicone.
Ernie

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Drado
Master Diver
Posts: 682
Joined: Mon Feb 07, 2011 6:11 am
First Name: Eduardo
Location: Manila, Philippines

Re: Duckbill Eliminator

Thu Feb 17, 2011 11:02 am

Hi Herman! Yeah, I tried to register as "Doc Ed" but I kept getting prompts that only allowed alphanumeric characters. Happy to be here :D

@ JBE: How did you trim your silicone duckbill relative to the can?

I just knew I shoulda snagged a DBE while I had the chance :P Maybe next time :D
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Ed

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Greg Barlow
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Posts: 525
Joined: Wed Jul 20, 2005 1:26 pm
First Name: Greg
Location: SW Ohio

Report on First Dives with a Duckbill Eliminator

Sun Feb 20, 2011 1:42 pm

I had the opportunity to use my Voit Navy PRAM yesterday while making two "slush" dives with Rob. My newly installed duckbill eliminator worked perfectly, as was expected. I am going to install one in my "everyday use" Voit 50 Fathom sometime this week.

Bryan has created another winning product. It just gets better and better...

Greg
Greg Barlow
PADI Assistant Instructor
TDI Adv. EAN
TDI Decompression Procedures
IANTD Full Cave
NSS/CDS Full Cave

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Bryan
Plank Owner
Posts: 5279
Joined: Fri Jun 24, 2005 11:40 am
First Name: Bryan
Location: Wesley Chapel Florida
Contact: Website

Re: Duckbill Eliminator

Sun Feb 20, 2011 4:11 pm

Thanks Greg....I can check under the ice off my list for them then! We all know that's a test I was never going to do myself :D A couple of divers said they were not sealing correctly and water leaked by. I asked both to be sure the silicone bead was wide enough to take up ALL the space between the eliminator and the walls on the inside of the horn. When they tried them again that fixed the problem. Don't be conservative when you put the silicone around the outside edge. What is not needed will squeeze out around the edges and you can remove it. Get half a dozen Q-tips and carefully and slowly roll the tip as you move along the edge where the extra sealant has squeezed out. When you make a pass THROW THE Q-tip AWAY and start again with a new one. After a couple of passes all the excess will be gone and you will have a great seal! Don't forget to remove any that has squeezed out on the inside of the horn. Hope this helps.
Doing it right should include some common sense, not just blindly following specs and instructions. .Gary D, AWAP on SB

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