New Regulator help??

[rcs9250]

I put my Scuba Pro MK25/G250V in a tub of 36 degree water last night. Air temp was 24 degrees F.
I thought (hoped) the water would be a bit colder but that's all I got.
The first stage was at ambient temperature and dropped the first and second stage into the tub. I had an extender on the moutpiece so I didn't have to have my head in the tub. :shocked2:
I turned the air on and took normal breaths from the reg. Because of the riser from the second stage I didn't really have to inhale as the water pushed the diaphragm open. I did exhale through the tube to push my humidified exhalation through the second stage. After about 10 minutes everything was still working fine. I suppose
a half hour or forty five minutes would have been a fairer test but I wasn't that patient.
I removed my mouth from the riser tube and put my thumb over the mouthpiece to allow me to control air to start flowing from the reg. I let this go for a couple minutes. After about 4 minutes the reg started to flow on it's own. It wasn't a full blown freeflow but it would not stop. I let it keep flowing and went in the house to get the camera. When I returned the first stage had started growing a nice wad of ice on it as shown in the photo. I tried to get it to grow larger but that was about all I could get before the tank emptied.
Then to determine if it was the first or second stage causing the freeflow I put the second stage in a pan of 80 degree water . It did not stop. I then put the first stage in the pan and it eventually stopped.
After that was all done I let the reg cool back to ambient and did what we are taught not to do, breathe from the regs in the cold air.
I took deep breaths for several minutes trying to get it to free flow. Remember the air temp is 24 gegrees F.
I could not get it to free flow even after holding the purge button for 15 -20 seconds. I still won't breathe from my regs in cold weather unless they are submerged but I was surprised that it did not flow.
If you look closely in the second photo you can see a clearish halo of ice forming on the first stage around the swivel end and on the hose swedge .

Be safe.
Randy

 

[BodenseeDiver]

nicely for you!
It has frozen over to you surely clearly the 1st step inside and not outside!

 

[stargost]

qcmaverick,

I think if you are happy with the legend, then having a second one has definitly some pros !

Now, few other comments:
- oceanic would be the cheapest, but you said price is not an issue. On this one, I'd take the EOS vs the delta due to the swivel, but then other would complain about the swivel and the custom hose. So maynot be the best option.

- other thing to consider is the octo. Some would recommend having a 'lower quality/unbalanced' model to minimize free flow, but it seems many people tend to keep the same model for both primary and backup.
- A set up I like is the xtx200 + xtx50, as indeed, i never heart nor read anyone complained about apeks.
Right now I'm using the delta, and have tried the M1 and the xtx200, which I will likely get for very cold water (like ice)... But i couldnt feel any difference in breathing.

I've seen people promoting the mk17/g250v for very cold water as well.





good luck!

 

[cbmech2]

My two cents about Atomic from a repair tech perspective. They generally cost more to service especially if you ask to have it sealed. Just the Christo will cost you $50 retail! Then you have the 2 or 3 kits to buy depending on whether or not you have the swivel and the extra cleaning time to remove the old Christolube if sealed during the previous service. Atomic however, extended their service interval to 2 years or I think 300 dives (Not entirely sure on the amount of dives) whichever comes first.

 

[mark_quitos]

I have a Legend LX regulator (not the "Supreme"), as I dive in warm climates. Now, I intend to dive in Canada (perhaps somewhere in the Victoria area) sometime this year. I was told that the water temperature there is around 7 degrees Celsius.

Question:
1. Would I be able to safely use this regulator "as is" in this conditions?
2. Do I need to have a technician alter anything with the reg so that I may use it in cold water?

I would really appreciate any help regarding this matter.

 

[BodenseeDiver]

I have a Legend LX regulator (not the "Supreme"), as I dive in warm climates. Now, I intend to dive in Canada (perhaps somewhere in the Victoria area) sometime this year. I was told that the water temperature there is around 7 degrees Celsius.

Question:
1. Would I be able to safely use this regulator "as is" in this conditions?
2. Do I need to have a technician alter anything with the reg so that I may use it in cold water?

I would really appreciate any help regarding this matter.

does EN 250 stand on the regulator by chance on it?
if so, is ther for Coltwater

 

[tc_rain]

From what I have been told, the Legend LX and the Legend LX Supreme are both enviro sealed and basically the same. The Supreme just has a different IP setting which you can have changed on yours (if you care to bother with it) and a lip shield. I have dove the Legend LX in 42* water for extended times without any problems. If I heard wrong, someone please correct me.

 

[mark_quitos]

Yes, I see the "EN 250" sign on the hose, 1st and 2nd stages. However, right next to the "EN 250" engraving, there's a marking ">10C".

I read somewhere in this forum that all I have to do is to let a technician adjust the intermediate pressure of the 2nd stage down to 135 for me to be able to use my Legend LX in cold water. Any advice on this?

 

[BodenseeDiver]

Yes, I see the "EN 250" sign on the hose, 1st and 2nd stages. However, right next to the "EN 250" engraving, there's a marking ">10C".

I read somewhere in this forum that all I have to do is to let a technician adjust the intermediate pressure of the 2nd stage down to 135 for me to be able to use my Legend LX in cold water. Any advice on this?

you must be regulated what lasts to me anew! I would write sometimes a mail to Aqua-Lung what one should / must make
EN 250 <4°C >10° coldly suitably for water

 

[rcs9250]

Yes, I see the "EN 250" sign on the hose, 1st and 2nd stages. However, right next to the "EN 250" engraving, there's a marking ">10C".

I read somewhere in this forum that all I have to do is to let a technician adjust the intermediate pressure of the 2nd stage down to 135 for me to be able to use my Legend LX in cold water. Any advice on this?

You heard correctly. The Legend LX Supreme has a 10 psi lower IP and a lip guard.