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What's the diff between regulator and octopus?

What's the diff between regulator and octopus?

Post Number:#1  Postby superkingkong » Mon Jul 30, 2007 5:18 am

hey guys...

not sure about this... both can deliver air from the 1st stage. but why mainly we are using a reg? .. and not those yellow octopus? ...

..... well, during my dive, i've tried breathing through my octupus... well, i survived.. and am posting this thread now  ;)
superkingkong
 
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Re: What's the diff between regulator and octopus?

Post Number:#2  Postby anas » Mon Jul 30, 2007 6:22 am

in terms of how they work, no difference.
but they serve to be primary and secondary.

what you did was to make them interchangeable--you're making your octo as a primary and your other reg as octo. you can also use that (yellow) octopus single handedly (meaning only that octopus and without any other regulator as secondary).

why octo is yellow bcos it's just to make sure (you and) your buddy knows where to get it if there's a need. yellow is just a color code. when we are out of air, we might panic lah. many things can happen lah.

my 1 cent.
anas
 
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Re: What's the diff between regulator and octopus?

Post Number:#3  Postby superkingkong » Mon Jul 30, 2007 6:50 am

i see.... cool thanks :)

i guess it's only the features that differenciate between regs

hmm.. since octo is much cheaper.. can i get one 1st stage with 2 octopusES?  ;D
superkingkong
 
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Re: What's the diff between regulator and octopus?

Post Number:#4  Postby poRnstar » Mon Jul 30, 2007 11:46 am

since u guys are discussing about this, i just wan to ask..

is there any advantages between Octo and the SS1 (second saver)?
where the octo is connected to our inflater hose.


8-)
poRnstar
 
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Re: What's the diff between regulator and octopus?

Post Number:#5  Postby poRnstar » Mon Jul 30, 2007 11:50 am

bc wat i can see, i can reduce the total of tangling hose attached to me..
but i do understand that with SS1 easy to do the manual inflate.

::)
poRnstar
 
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Re: What's the diff between regulator and octopus?

Post Number:#6  Postby deepblu » Mon Jul 30, 2007 12:54 pm

in terms of how they work, no difference.
but they serve to be primary and secondary.

what you did was to make them interchangeable--you're making your octo as a primary and your other reg as octo. you can also use that (yellow) octopus single handedly (meaning only that octopus and without any other regulator as secondary).

why octo is yellow bcos it's just to make sure (you and) your buddy knows where to get it if there's a need. yellow is just a color code. when we are out of air, we might panic lah. many things can happen lah.

my 1 cent.





agreed.

as per why many things emergency are colour coded in yellow. (err...at least in Eng-uh-land :)).

which then raises a question : why do many divers mix and match their primary and secondary stages - eg an aqua lung legend with a say dacor octopus - blatantly ignoring manufacturers' recommendations of having the same make?

Is it to save money money? (a Legend octo cost 2x more than a dacor)

What are the implications or things that will probably happen - ie o-ring bursting?


since u guys are discussing about this, i just wan to ask..

is there any advantages between Octo and the SS1 (second saver)?
where the octo is connected to our inflater hose.


8-)


other than the "one less hose to untangle with" you mentioned, there are no other differences between the two.

however, you just need to ensure that your primary reg hose is long enough for your buddy to use in an emergency situation.


my 0.02sen
deepblu
 
Topic author

Re: What's the diff between regulator and octopus?

Post Number:#7  Postby matzahar » Mon Jul 30, 2007 12:56 pm

I think the SS1 is a little short. Mabbe we need to use the SS1 and offer the 'now-we're-using' 2nd stage to buddy. Never tried SS1 - maybe onli....

I'm using the el-cheapo BC. No corrugated tube so less 1 tangling hose.

Image
matzahar
 
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Re: What's the diff between regulator and octopus?

Post Number:#8  Postby maltymouse » Mon Jul 30, 2007 1:32 pm

REGULATOR for  heavy usage while OCTOPUS for emergency and light usage
maltymouse
 
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Re: What's the diff between regulator and octopus?

Post Number:#9  Postby leafbug » Mon Jul 30, 2007 3:54 pm

IMHO... there's only 1 regulator - that is the 1st stage, it regulates the pressures from the tank to the ambient pressure of your depth, therefore you'd not be forced of air into your lungs... but comfortably sucking it as if breathing on land.

the 2nd stage is a passive receiver of the air sent by the 1st stage... some 2nd stage designs have all sorts of additional mechanisms to ease breathing at depth, using super hard materials like titaniums, etcetera... but the fundamental function of the 2nd stage regs are all the same.

so, if the 2nd stage is of a good quality and build from certain manufacturers, and especially if it's designed for a 1st stage with the same interstage pressure, then it's ok to mix & match the setups (not to the recommendation of manufacturers, just as Microsoft won't recommend you to use Firefox).

for example, Suunto SPG on any model of regs works perfectly. Atomic 2nd stage works perfectly on almost all balanced diaphram 1st stages (haven't checked on pistons). IMO, there's no difference between the primary and secondary (octopus)... it's just names and colors to differentiate them especially during diving. they're mechanically the same.

Of course, this is from my own observation and experience, I'm not a techie nor the engineer who build regulators.
Last edited by leafbug on Mon Jul 30, 2007 3:57 pm, edited 1 time in total.
leafbug
 
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Re: What's the diff between regulator and octopus?

Post Number:#10  Postby zani » Mon Jul 30, 2007 4:36 pm

IMHO... there's only 1 regulator - that is the 1st stage, it regulates the pressures from the tank to the ambient pressure of your depth, therefore you'd not be forced of air into your lungs... but comfortably sucking it as if breathing on land.

the 2nd stage is a passive receiver of the air sent by the 1st stage... some 2nd stage designs have all sorts of additional mechanisms to ease breathing at depth, using super hard materials like titaniums, etcetera... but the fundamental function of the 2nd stage regs are all the same.

so, if the 2nd stage is of a good quality and build from certain manufacturers, and especially if it's designed for a 1st stage with the same interstage pressure, then it's ok to mix & match the setups (not to the recommendation of manufacturers, just as Microsoft won't recommend you to use Firefox).

for example, Suunto SPG on any model of regs works perfectly. Atomic 2nd stage works perfectly on almost all
balanced diaphram 1st stages (haven't checked on pistons). IMO, there's no difference between the primary and secondary (octopus)... it's just names and colors to differentiate them especially during diving. they're mechanically the same.

Of course, this is from my own observation and experience, I'm not a techie nor the engineer who build regulators.



Cool info mate!!
zani
 
Topic author

Re: What's the diff between regulator and octopus?

Post Number:#11  Postby poRnstar » Mon Jul 30, 2007 5:18 pm

ermmmm..  ;)
poRnstar
 
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Re: What's the diff between regulator and octopus?

Post Number:#12  Postby zimm » Mon Jul 30, 2007 5:59 pm

i've to use my Atomic 2nd stage during buddy breathing as its shorter than normal octopus but frankly i wud rather use tat as my 1st stage.....no need to carry long hose around :P
zimm
 
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Re: What's the diff between regulator and octopus?

Post Number:#13  Postby SeaDemon » Mon Jul 30, 2007 7:01 pm

I dunno what the fuss is. I come from the generation where there was no octopus.

And I do use my octopus for breathing sometimes.
SeaDemon
 
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Re: What's the diff between regulator and octopus?

Post Number:#14  Postby jgshuwei » Mon Jul 30, 2007 7:52 pm

My octopus is the same with my reg. because they have no stock that time and I've paid for it. I can't wait any longer cos I'm going for a dive trip. That guy use a yellow reg. c/w yellow hose and "whack" lah.
jgshuwei
 
Topic author

Re: What's the diff between regulator and octopus?

Post Number:#15  Postby HoleMaster » Mon Jul 30, 2007 10:28 pm

I agree with Leafbug, mechanically primary and octo 2nd stage are the same. Most ppl purchase octo which is of lesser spec than their primary first stage. For e.g I use scubapro s600 for my primary and r190 for my octo. The reason is bcoz, U as main user would definately use much better spec than ur buddy. But then some ppl who has more money can opt to buy same quality and spec for the octo. Choice is on U.

Usually octo has to be easily identifiable and reachable by ur buddy. That is why most octo is yellow in colour and hose are much more longer. However if u use an Air2 or an octo which integrates with ur inflator hose, when buddy breathing the primary goes to ur buddy and u would use the Air2. The benefits of using Air2 is less prone to entanglement and more streamlined. The setback is, if u change BCD e.g from Scubapro to Oxycheq u would need to do some modifications to the BCD to accomodate the Air2. Also u have to use back the Air2 inflator hose. Normal inflator hose would not fit in the "nipple" of the inflator. Cheers!
HoleMaster
 
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Re: What's the diff between regulator and octopus?

Post Number:#16  Postby MT_Tanc » Sat Oct 13, 2007 1:41 am

HoleMaster wrote:I agree with Leafbug, mechanically primary and octo 2nd stage are the same. Most ppl purchase octo which is of lesser spec than their primary first stage. For e.g I use scubapro s600 for my primary and r190 for my octo. The reason is bcoz, U as main user would definately use much better spec than ur buddy. But then some ppl who has more money can opt to buy same quality and spec for the octo. Choice is on U.

Usually octo has to be easily identifiable and reachable by ur buddy. That is why most octo is yellow in colour and hose are much more longer. However if u use an Air2 or an octo which integrates with ur inflator hose, when buddy breathing the primary goes to ur buddy and u would use the Air2. The benefits of using Air2 is less prone to entanglement and more streamlined. The setback is, if u change BCD e.g from Scubapro to Oxycheq u would need to do some modifications to the BCD to accomodate the Air2. Also u have to use back the Air2 inflator hose. Normal inflator hose would not fit in the "nipple" of the inflator. Cheers!


which part is the 'nipple' of the inflator?
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Re: What's the diff between regulator and octopus?

Post Number:#17  Postby Mephisto the Heretic » Sat Oct 13, 2007 6:46 pm

The difference between the primary and secondary reg is of fuction and application.

Function wise the primary is more refine in breathing effort and it is adjustable with various ventury and resistance knobs. the secondary is just straight out delivary. with the two of the same brand, you will notice the differrence in breathing effort and dellivary.

as for application, the secondary has a longer hose which is convinient when buddy breathing is done. thats why when donning of taking off you scuba unit underwater it is easier to breath through the octopus.

but its okay to have the same type of unit as your primary and secondary.
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