ams511
Contributor
The problem with octo/inflators is that divers are not taught to use them properly. You need an octo length hose on your primary because this is what you will donate. It is funny (but sad) to see a diver try to donate an Air 2 or the like. The rationale for an octo inflator is that you always know where the octo is, this is not always the case with a conventional secondary. Also as Dr. Lector mentions most OOA divers are not going to calmly swim up to you, give the out of air sign and then wait for you to donate the octo. This is a certifying agency's fairy tale. I agree with Lecter and Chen that a necklaced short hose secondary is the way to go.
As far as the disadvantages I read here. If the octo/inflator pulls then the hose is not long enough or flexible enough. You need at least a 16" true rubber correlated hose not a plastic wannabe. As far as dumpling air when breathing, this is usually not a problem with a jacket bc because it has shoulder dumps. If the BC does not have a shoulder dump you can add a pull dump (I don't really recommend this though). As far as breathing goes an octo/inflator does not breath any worse than some of the small puck octos being sold. In fact some breath better. To solve the hose problem you can use a regulator hose with an adaptor and change the adaptor for either an octo inflator or a conventional one.
As far as the disadvantages I read here. If the octo/inflator pulls then the hose is not long enough or flexible enough. You need at least a 16" true rubber correlated hose not a plastic wannabe. As far as dumpling air when breathing, this is usually not a problem with a jacket bc because it has shoulder dumps. If the BC does not have a shoulder dump you can add a pull dump (I don't really recommend this though). As far as breathing goes an octo/inflator does not breath any worse than some of the small puck octos being sold. In fact some breath better. To solve the hose problem you can use a regulator hose with an adaptor and change the adaptor for either an octo inflator or a conventional one.