Atomic Z2 reg is free flowing with new Seacure mouthpiece.

[inquis]

fully open is the knob turned away from myself correct?

Yes, "top of the knob turned away from you while in your mouth" is "open".

The manual and the research I’ve done says to not leave the knob all the way open while diving that is only for rough seas, jumping into surf that kind of thing. I’m unsure why that is.

That's backwards. Fully clockwise (looking at the end of the knob, i.e., "closed" or "screwed in") is the hardest to start the flow, useful for entry and on the backup regulator. In normal operation, open it to make the start of breathing easier, but not to the point it free-flows while in your mouth. Over time as internal parts wear, you may need to adjust it a little in/more closed to stop a slight free-flow that might have developed (slight bubbling, really).

I don’t really notice a change in my breathing from all the way open to all the way closed.

It controls only the starting effort. Once the flow starts, there is no difference.

 

[okiediver1961]

Yes, "top of the knob turned away from you while in your mouth" is "open".


That's backwards. Fully clockwise (looking at the end of the knob, i.e., "closed" or "screwed in") is the hardest to start the flow, useful for entry and on the backup regulator. In normal operation, open it to make the start of breathing easier, but not to the point it free-flows while in your mouth. Over time as internal parts wear, you may need to adjust it a little in/more closed to stop a slight free-flow that might have developed (slight bubbling, really).

It controls only the starting effort. Once the flow starts, there is no difference.

Makes sense although fully closed or a little bit open is the only way the reg doesn’t free flow. My main goal is to minimize the free flow and still use the mouthpiece. Yes I could put the original atomic mouthpiece back on, but I can’t even hang onto that in my mouth and I hate it to be honest..!

 

[inquis]

fully closed or a little bit open is the only way the reg doesn’t free flow

The shop should tune it with your preferred/installed mouthpiece to NOT free-flow when the adjustment knob is all the way out. This gives you room to adjust as internal parts wear. As others have mentioned, I suggest you take it back to be properly serviced. (It's pretty quick to adjust.)

 

[okiediver1961]

I will do that on Monday. Thank you!

 

[okiediver1961]

I will do that on Monday. Thank you!

Before I go to dive shop and ask about this I thought I would take a pic. Maybe I wasn’t clear?was I backwards? Is the knob in the fully closed position or is this the fully open position? This is where there is no free flow. I would really appreciate confirmation on whether or not the knob is where it should be for diving. Thank you!

 

[Zane]

Before I go to dive shop and ask about this I thought I would take a pic. Maybe I wasn’t clear?was I backwards? Is the knob in the fully closed position or is this the fully open position? This is where there is no free flow. I would really appreciate confirmation on whether or not the knob is where it should be for diving. Thank you!

Thats fully closed. Here's from the manual:

There is only one diver adjustable control on the second stage. It is the rapid adjustment knob on the side of the regulator that can be used to “detune” or increase inhalation effort. Under normal use, the knob should always be turned all the way out (counterclockwise) for the lowest breathing effort. During entries through the surf, jumping off of a boat, or situations where the regulator is not in your mouth, you may want to turn the knob all the way in (clockwise) to desensitize it. Do not leave the knob in the detune position while diving. The common misconception that this will conserve air is not true and will only make breathing slightly harder. Never force the knob past its stops in either direction.

 

[Zane]

@okiediver1961 Has the regulator ever free flowed while in your mouth?

 

[okiediver1961]

Thats fully closed. Here's from the manual:

There is only one diver adjustable control on the second stage. It is the rapid adjustment knob on the side of the regulator that can be used to “detune” or increase inhalation effort. Under normal use, the knob should always be turned all the way out (counterclockwise) for the lowest breathing effort. During entries through the surf, jumping off of a boat, or situations where the regulator is not in your mouth, you may want to turn the knob all the way in (clockwise) to desensitize it. Do not leave the knob in the detune position while diving. The common misconception that this will conserve air is not true and will only make breathing slightly harder. Never force the knob past its stops in either direction.

View attachment 898503

So confusing to me. I have read that 100 times. It depends on what angle you are looking at it as clock or counter clockwise. Regardless I’m headed to the dive shop tomorrow to discuss, just wanted to be sure before I did that. Thanks to all again.

 

[inquis]

It depends on what angle you are looking at it as clock or counter clockwise

Top of the knob "closer" to your face while breathing from the reg is "closing" it. You will see a gap between knob and the reg body when fully open, and the gap closes as you turn the knob closed. Hope it helps...

 

[Zane]

It depends on what angle you are looking at it as clock or counter clockwise.

Clock hands don't start spinning backwards if you look at it from a different angle..... they always go the same direction. That is clockwise! Haha