Backup Regulator Necklace Hose Routing

[RobPNW]

As per that excellent colour-coded hose picture posted above, there’s 4 low pressure hoses, two to the regulators over the right shoulder, then one to the BCD over the left shoulder with an optional hose for the drysuit hose, also routed left.

The high pressure goes to the pressure gauge goes left and clips to the left-hand waist D-ring

Right, for me, without a dry suit, I would have 4 total, one high and one low on each side. Seems ideal.

 

[Wibble]

Right, for me, without a dry suit, I would have 4 total, one high and one low on each side. Seems ideal.

Almost right… two LP right (regulators), with one LP (BCD) and one HP (SPG) left.

By the way, having a drysuit hose can be useful for putting up a SMB (surface marker buoy). If so, then I’d tape it to the HP hose (e.g. if diving in a wetsuit)


(I thought the water was cold in Washington state?)

 

[Nemrod]

I guess in theory, if there's no drysuit inflation hose routing under the left arm, one could route a hose to a necklace that way. I've never done any setup other than the classic beginner diver configuration, that's why I'm asking.

Probably not a good idea as it is non standard of either of the two main standard configurations, lol, and you would need a second stage reg that could be switched to left side input.

Old school thinking, maybe, but air supply is always routed on the right side, which even included snorkels in olden times. Yes, it did. Secondary or non-critical systems, that being BCs and dry suits and tools, SPGs, went left. For a time USD ran the BC inflator to the right side considering it supply but then the standard became and has remained left side. We are talking singles and back mounted.

James

 

[RobPNW]

I have the opportunity to get one of the MK19 1st stages at a significant discount for this setup. For that regulator and only single tank diving, is there an advantage of one vertical orientation for the first stage over the other. If the side of the tank valve plays a role, I was assuming my transmitter would be one the side behind my right shoulder. I also don't know if this matters but I have a shorter neck. Maybe one orientation makes it less likely to hit the back of my head?

Any thoughts on the vertical orientation question?

 

[drk5036]

Yes. Exactly.

The BSAC people seem to use it though. They were vociferously opposed to the longhose configuration for years, only allowing it five or so years ago.

Seems like how people react when they see my setup here…

 

[drk5036]

Wait, by “standard” you mean all octo in Japan is for left side routing? What 2nd stages are they?

As far as I’ve seen, yes. Out of the 20 or so people I dive with, I’m the only person who uses two regulators on the right side, and drysuit hose to the left.

 

[RobPNW]

Most regulators you see will perform good. Mk25/19/17, AA, AL, hog, deep6... for beginners, I think It is more important to have model that can be serviced locally. I am not sure mk19 is one of them. This is officially not available in US. What other reg choice are you considering?

Is there a certification we can do to self service our own regulators without voiding any vendor maintenance agreement?

 

[Wibble]

Is there a certification we can do to self service our own regulators without voiding any vendor maintenance agreement?

Yes and no.

Obviously you can service your own kit. But this may void any warranties and just could affect your insurance.

If you’ve only one regulator set, just let your local dive shop do it. When you’ve accumulated a dozen regulators and dozens of cylinders it’s a different matter entirely.

I’m pondering taking a regulator maintenance course now I’ve hit those numbers!

 

[inquis]

On the long primary hose, do you guy use a little bungee on your right side to keep it from getting to floaty off to the right

7' hose tucks under a battery canister, knife, sheers, etc. on the right hip; or a bight shoved through the waistband. A 5' hose just wraps.

I had the impression you were planning to use the so-called "advanced recreational" routing with a 40" hose under the arm and immediately up to your mouth. I wouldn't exactly call that a long hose. My speculation is it would be more prone to drooping / catching, which was perhaps your thought as well?

I would like to route my primary regulator on an extended hose under my right arm and up to a fixed 30 degree coupling

In contrast, the 5 or 7 ft hoses are looped behind the neck. This is the "hog-looped" configuration (Hogarthian).

If you were planning on the adv. rec, I'd ask you why you picked that. If it's for the flexibility in air share, I'm not sure you gain anything over the std. recreational approach.

 

[loosenit2]

7' hose tucks under a battery canister, knife, sheers, etc. on the right hip; or a bight shoved through the waistband. A 5' hose just wraps.

I had the impression you were planning to use the so-called "advanced recreational" routing with a 40" hose under the arm and immediately up to your mouth. I wouldn't exactly call that a long hose. My speculation is it would be more prone to drooping / catching, which was perhaps your thought as well?

In contrast, the 5 or 7 ft hoses are looped behind the neck. This is the "hog-looped" configuration (Hogarthian).

If you were planning on the adv. rec, I'd ask you why you picked that. If it's for the flexibility in air share, I'm not sure you gain anything over the std. recreational approach.

using a 40" under the arm to primary and a 20-22" necklaced backup is a way to maintain primary donate configuration without using a long hose. It is good for building muscle memory without additional complication of a long hose. In other words it is a way to build up to a long hose for some or a way to keep your recreational rig in primary donate to maintain muscle memory without using a long hose in those situations you don't want to.