kind of a silly question

[Nemrod]

You can unsrew the adapter to the second stage poppit valve seat thus releasing the pressure on the seat. I usually only hand tighten this joint. N

 

[OceanicRocks]

can anyone be so kind to post a picture of how to hold the purge open with a posicle stick and quarters? 'd like to try it but you know us newbies... we feel uneasy about doing anything help!

 

[Couv]

The first picture shows a three regulators. One has a stack of quarters taped together and simply placed between the purge button and the hard cover. But as Luis pointed out, this also depresses the soft cover over the diaphragm...so if you have this type of set up on your regulator it is probably not a good idea. (thanks Luis)

The second regulator has a stack of quarters taped to the housing. After reconsidering the above, this is probably not a good idea either as it may hold the diaphragm in a distored position.

The third regulator has an old Dacor purge depressor fitted on to it. I have removed it in the second picture so you can have a better look at it.

Having said all that....I think LuisH and Nemrod have the right idea. Just turn the adjustment knob out all the way and live with a little seat engraving as it is easily replaced.

"...........dammit Jim, I'm a doctor, not an engineer....,"
...Dr. McCoy

 

[OceanicRocks]

The first picture shows a three regulators. One has a stack of quarters taped together and simply placed between the purge button and the hard cover. But as Luis pointed out, this also depresses the soft cover over the diaphragm...so if you have this type of set up on your regulator it is probably not a good idea. (thanks Luis)

The second regulator has a stack of quarters taped to the housing. After reconsidering the above, this is probably not a good idea either as it may hold the diaphragm in a distored position.

The third regulator has an old Dacor purge depressor fitted on to it. I have removed it in the second picture so you can have a better look at it.

Having said all that....I think LuisH and Nemrod have the right idea. Just turn the adjustment knob out all the way and live with a little seat engraving as it is easily replaced.

"...........dammit Jim, I'm a doctor, not an engineer....,"
...Dr. McCoy

thank you sooooooo much for the pictures... as they say worth a thousand words. now for an even dummer question... how do you know the adjustment nob is set all the way out? I just got this darn contraption and have yet to dive it. thanks guys.

 

[Luis H]

The first picture shows a three regulators. One has a stack of quarters taped together and simply placed between the purge button and the hard cover. But as Luis pointed out, this also depresses the soft cover over the diaphragm...so if you have this type of set up on your regulator it is probably not a good idea. (thanks Luis)

The second regulator has a stack of quarters taped to the housing. After reconsidering the above, this is probably not a good idea either as it may hold the diaphragm in a distored position.

The third regulator has an old Dacor purge depressor fitted on to it. I have removed it in the second picture so you can have a better look at it.

Having said all that....I think LuisH and Nemrod have the right idea. Just turn the adjustment knob out all the way and live with a little seat engraving as it is easily replaced.

"...........dammit Jim, I'm a doctor, not an engineer....,"
...Dr. McCoy

I don’t worry as much for the diaphragm being deformed since they are still available and probably will be for hopefully a long time. Plus the newer diaphragms are made of thin silicone. My experience (and what I have being told) is the silicone rubber tends to remember its molded geometry better than other rubbers.

I am not sure if the later diaphragm covers for the Scubapro 109 are silicone. I hope so since they should last for a long time. I have some 109s for parts that the rubber cover is just breaking into pieces. I did place a call to my LDS, but she hasn’t called me back with an answer.


Again, with a balanced second stage, I don’t worry too much about the spring pressure pushing the soft seat against the volcano orifice. The spring force is relatively low.

 

[Luis H]

thank you sooooooo much for the pictures... as they say worth a thousand words. now for an even dummer question... how do you know the adjustment nob is set all the way out? I just got this darn contraption and have yet to dive it. thanks guys.

I am not really familiar with your regulator, but looking at it, and reading the web site (Oceanic Worldwide - Delta 4 Scuba Diving Regulator ) it looks like a conventional adjustable second stage. In most you just turn the knob counter clockwise until it stop, for the least spring force.


I did look at the manual:
http://www.oceanicworldwide.com/pdf/12-2018-r08.pdf
But it wasn’t as helpful as I expected.

When you turn it you should notice the breathing resistance changing (it may take several turn before you can feel it). You want to store it in the easiest breathing position, but don’t worry too much about. Take it diving and have fun!

 

[Couv]

thank you sooooooo much for the pictures... as they say worth a thousand words. now for an even dummer question... how do you know the adjustment nob is set all the way out? I just got this darn contraption and have yet to dive it. thanks guys.

Turn the knob all the way counter-clockwise (anti-clockwise for my limey friends.) Just like a faucet outside your house.

 

[Luis H]

Well,

Darn it....now I'll have to go dig out my regulators when I get home and comply. I did not even consider the issue with the diaphragm covers, so I'll have to see if I have them distorted. In addition, I know that I have a couple of old metals that I just aquired that need the diaphragm covers replaced due to dry rot. If you have a tip on a suitable replacement please pass it on...same for the exhaust tees.

Thanks Luis,

couv

Hi couv

Well... I was wrong about the availability of diaphragm covers. Scubapro still makes them and my LDS ordered 10 after I asked her if they were available.

Maybe Scubapro makes them in batches from time to time. That might have been the reason I was told they were not available at the time (or maybe the LDS I was talking to at the time didn't have a clue and was just trying to sell me a new regulator).

In any case, you can probably get your LDS to order you some or I will be glad to get you some from my LDS. She ordered several knowing that I may be buying a couple for an internet friend. Send me a PM if you would like me to get them for you.

She also claims that the replacement exhaust "T" works fine with the 109.


I will be buying a few replacement diaphragm cover and I hope this new ones are silicone. I will continue to use my old ones as long as they look in decent shape.

IMHO, I still don't see as much of a need to store a balanced regulator with the purged pushed in. With the light spring of a balanced regulator, my experience is that the seat just gets indented a bit, but doesn’t seem to deteriorate much after that. I also still want to preserve the diaphragm cover. That is just my preference, but in light of the availability of parts, it is your choice.

 

[Couv]

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