My Reg Fails Closed, sort of, huh?

[rgerman95]

if you have time constraints and need to have it looked at there just send me the invoice and I will refund the cost of the repair! Joe

Scubatoys is a class act, as everybody on the board has been saying.

 

[do it easy]

I know the problem is with the first stage, because I changed the second stage as a test and it does the same thing.

We've secretly replaced Rick's Christolube with Folger's Flakes. Let's see if he notices the difference.

 

[Rick Inman]

It would be hard to say without looking at it but sounds to me like Paulwlee hit it on the head… The best way would be send it back and I will take a look at it and get it back to you in just a couple days! But if you have time constraints and need to have it looked at there just send me the invoice and I will refund the cost of the repair!

Sorry!


Thanks


Joe

Joe,

I'll just send it back to you today and not mess with is (my lds is not an Atomic dealer, but a great guy, willing to help). As usual, you guys are awesome!

After you fix it, let us know what the cause was.

Thanks!!!

Rick

 

[jim T.]

Regardless of what the issue is, I'm glad to now know that too little Christolube can cause this or similar performance issues to happen even at higher (than near freezing) water temperatures. Something to check on when I get my M1 and Z2 serviced for the lst time.

Best of luck Rick, do let us know what happens.

 

[scubatoys]

We've secretly replaced Rick's Christolube with Folger's Flakes. Let's see if he notices the difference.

That sounds funny but we actually had one of our instructors do something close to that… Like most of us he uses the Apollo Bio filter and got the idea he would fill the sponge with a little watered down Tequila just for flavor and you can imagine what happened…. The dive lasted all of about 5 minutes and his diving was over for the trip! And kept complaining of a sore throat. Needless to say he is no longer working for us even thou we did get a big laugh out of it!

I

 

[do it easy]

I would have thought the tequila trick would have worked- good to know!

And kudos to Scubatoys for outstanding service! Your offer to Rick is quite generous and underscores your commitment to customer satisfaction.

 

[Rick Inman]

We've secretly replaced Rick's Christolube with Folger's Flakes. Let's see if he notices the difference.

NoIDidn'tnoticeanydifferenceandthanksforaskingand caringabouthowi'mdoingandcoffeedoesn'teffectme
anywayseeya.

 

[redacted]

As long as we are making guesses, I'll go with lever height too high and compensated for by some extra tension in the spring. Seems to breath OK on the surface but the lever starts to foul against the diaphram as ambient pressure increases. Suck hard enough and it will break loose (pop) and deliver a bunch of gas and may freeflow. When the freeflow stops, exhale and repeat. I'm not sure where the fails closed comes from unless the lever gets to bouncing up and down and fouls again on the diaphram dunring an up swing.

You can't use the cheap tequila.

 

[paulwlee]

As long as we are making guesses, I'll go with lever height too high and compensated for by some extra tension in the spring. Seems to breath OK on the surface but the lever starts to foul against the diaphram as ambient pressure increases. Suck hard enough and it will break loose (pop) and deliver a bunch of gas and may freeflow.

The ambient pressure acts against both sides of the diaphragm (the diver inhales and creates a differential) so I don't see how it would affect how the lever interacts with the diaphragm. In addition, the IP also goes up with ambient pressure provided that the first stage is operating correctly, so all the effects of higher ambient pressure is balanced out in the second stage. The denser gas will have an effect on the flow during inhalation, but shouldn't have an effect on the cracking behavior.

Besides, the OP said he tried with another second stage and got the same results.

 

[redacted]

The ambient pressure acts against both sides of the diaphragm (the diver inhales and creates a differential) so I don't see how it would affect how the lever interacts with the diaphragm. In addition, the IP also goes up with ambient pressure provided that the first stage is operating correctly, so all the effects of higher ambient pressure is balanced out in the second stage. The denser gas will have an effect on the flow during inhalation, but shouldn't have an effect on the cracking behavior.

Besides, the OP said he tried with another second stage and got the same results.

Remember that thing in school where they said read the whole problem before you give an answer. I didn't.:shakehead

But it is possible with a 2 adjustment second, particularly a barrel poppet design. the set the lever height too high with the orifice adjustment and then stop the freeflow by compressing the spring beyond spec with the other adjustor. The result is the lever wants to "stick" on the diaphram and performance is erratic.