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Can someone tell me what this little keyhole-looking thing is - what it does, what its purpose is, if it looks like it should, etc.?
Thanks.
Thanks.
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"Millennium hand and shrimp!" -
It's a plug that closes another port in the gauge manifold. Not sure why it's there. I'll ask my welding supply buddy today.
MarkWhat are the facts? Again and again and again--what are the facts? Shun wishful thinking, ignore devine revelation, forget what "the stars foretell", avoid opinion, care not what the neighbors think, never mind the unguessable "verdict of history"--what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your only clue.
Robert Anson Heinlein -
Hmm, no idea what that means, Mark.
But thank you, I appreciate the help! 
"Millennium hand and shrimp!"Comment
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How do I close it all the way?
Yesterday I remembered I had a small 2.5lb cylinder that was not empty that I could put on my new tank until I got the 10lb cylinder filled. So when I opened up the small cylinder after hooking it up, among other things happening, CO2 started shooting out of this little hole."Millennium hand and shrimp!"Comment
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Pressure -relief maybe? It looks almost like an expansion orifice. That's really weird. I'll stop by the welding shop at lunch and ask Chuck.
MarkWhat are the facts? Again and again and again--what are the facts? Shun wishful thinking, ignore devine revelation, forget what "the stars foretell", avoid opinion, care not what the neighbors think, never mind the unguessable "verdict of history"--what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your only clue.
Robert Anson HeinleinComment
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with a small screw driver that's all you need.
LuisComment
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OK MB, I went to see Chuck at Calico welding. He says that's a pressure relief and is common on some regulators. He says there are only two conditions where co2 will escape that hole:
1. If the pressure on the high-pressure side of the regulator is too great for the regulator to handle, the relief valve opens to avoid damge to the regulator.
2. If there is a fault with the regulator high-pressure side, the relief valve will let the co2 escape in stead of going straight through to the low-pressure side.
MarkWhat are the facts? Again and again and again--what are the facts? Shun wishful thinking, ignore devine revelation, forget what "the stars foretell", avoid opinion, care not what the neighbors think, never mind the unguessable "verdict of history"--what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your only clue.
Robert Anson HeinleinComment
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Thank you both so much!
I imagine it might have 'tripped' open or something because of the fact that when I had this regulator hooked up to the 10lb CO2 cylinder, the last time I messed with it was before I realized that there was no CO2 left. So the settings on the regulator were probably pretty high - meaning everything was open, lol. (I couldn't understand why no CO2 was coming out!
) So when I hooked up the regulator to the smaller cylinder, the diffuser popped off of the tubing, lots of noises started, and lots of CO2 was released - most of it through this little hole.
I was hoping that might have been the leak I was looking for, but it looks like it was just my stupid tinkering that opened it. Argh.
But really, thank you guys so much!"Millennium hand and shrimp!"Comment
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You're always welcome, MB.
MarkWhat are the facts? Again and again and again--what are the facts? Shun wishful thinking, ignore devine revelation, forget what "the stars foretell", avoid opinion, care not what the neighbors think, never mind the unguessable "verdict of history"--what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your only clue.
Robert Anson HeinleinComment
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