Mailing List Archive Mailing List Archive
It ( my backup Apeks ) is non-adjustable, but has a balance chamber. The difference is that these do not crack as easily as an ( air balanced ) G250 , for instance, and of course you can tighten the orifice setting to increase the cracking presure, and you can set the switch so that it may burp, but not freeflow. Also your IP needs to be lowered to the 120-130 range . Scuba Pro used to make the G200 , which was a non adjustable , non air balanced second, but I do not know what happened to that one. Maybe JJ can tell us what the next best is, like the 380 or whatever they have now. I used to just put the g200 seat and poppet in the other regs to get that effect, or block the air balance chamber on the Apeks, but that is not necessary, and without the collars for the tube, the poppet may blow the lever ears out and fail the reg off , so I no longer do that one. It makes an excellent backup reg ( the Apeks non adjustable ). Another big factor is how you set it up: the necklace must be tight to the neck so that the reg is not hanging out where water will be passing over the mouthpiece ( and thus lowering the pressure and causing it to operate), and so that you can use the necklace to force the reg into your mouth by putting the necklace around your head if you feel bad or if you are in a high flow situation. The position of the primary is face away ( down ) so it tends not to freeflow either, and there you use the adjustment knob to make it hard to crack. The Apeks seat tolerates a lot more knob turning that the Scuba Pro, so I use Apeks for both primary and backup. The Pro breathes a lot better, but that is a "mute" point on gas. I use Scuba Pro for deco gases as I am breathing them longer, and the gas is more likely to be nitrogen /oxygen rather than helium so is harder to breathe. In general, what you want is a "low performance" backup reg and an adjustable primary, and on stages it makes no difference, although the lower performance regs tend to give you less trouble, and on deco gas you want ease of breathing. Ther is also a third Apeks second which may be not have the balance chamber, and that must be the one Tod is talking about. I do not have any of those. I do have six of the US 4 first, about six of the swivel version, and 18 of the Apeks adjsutable seconds and seven of the non adjustables. I have more MK20 G250's and a bunch of Poseiden Odin with Apeks seconds, and a bunch of Oceanics and a bunch of Beuchats. I also have several US Divers. Guess what - they all are a pain in the ass, but I have no Apeks parts - never needed any. TGunther@co*.co* wrote: > > For the non air-balanced second stage George uses the Apeks ZRD. > > Tod > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]