Vasoline on O-Rings, and now my QD is a pain to get on and off

[NightFlight]

I've been hunting down leaks and I think I'm using pinlock o-rings on my ball lock posts. Dammit! I've been leaving my newly acquired expensive stainless steel disconnects off to maintain pressure and not go through somewhere around .5lb a day. OMG

Does vas cause shrinkage on buna? I wouldn't think so. I'm just using vas because to be honest I don't care for the price of the food grade silicone. Of course I say that after what seems hundreds of dollars sunk into draft gear.

 

[bracconiere]

Does vas cause shrinkage on buna? I wouldn't think so.

they all tell me, you want vas for silcone rings, and silicone grease for buna rings...

 

[NightFlight]

I've gone completely around the bend for quite some time trying to hunt down leaks (a year?). I finally identified what is going on.
This is me, testing my theory.

 

[bracconiere]

I've gone completely around the bend for quite some time trying to hunt down leaks (a year?). I finally identified what is going on.
This is me, testing my theory.

regulator leak....

 

[NightFlight]

regulator leak....

Nope. In fact when I attempted to return it under warranty, the retailer suggested I submerge it, which I did and that was settled. The regulator is not leaking. After I cut that video I threw the tank and regulator in the tub as well. No leaks.

Also note, if I leave the tank decoupled, you do not see that drop on the high side, the pressure will remain for days. That means the regulator is fine.

 

[NightFlight]

Actually, I made a supposition that it was a "lot" of Co2 going into the liquid. I suspect compressed gas is very springy, and once compressed to a point, doesn't take much more to show higher pressure. So when the high side drops quickly it doesn't mean there is lots to expand into the liquid. Of course shaking the keg when the gas is coupled and turned off, you see the high side immediately drop - since agitating the liquid allows it to accept Co2 much more easily.

 

[bracconiere]

well i've never had luck seeing bubbles. but i keep my cylinder on a scale, and can see if it loses even an ounce quickly....

and this is an uncarbed keg?

 

[bracconiere]

Also note, if I leave the tank decoupled, you do not see that drop on the high side, the pressure will remain for days.

with the cylinder shut off right?

 

[soccerdad]

Folks your age used Vaseline for everything. Never heard of new fangled stuff like K-Y, keg lube, or WD 40. Still have an ice box, I bet.

 

[bracconiere]

Folks your age used Vaseline for everything. Never heard of new fangled stuff like K-Y, keg lube, or WD 40. Still have an ice box, I bet.

just my beard is gray, definitely used a lot of WD40 in my time...and come on, you have to be old enough to remember hair spray flame throwers, and mixing pool acid and alluminum foil? cannon fuse, gun powder, in an empty co2 thing? ahhh!! the 80's!

 

[Dr_Jeff]

just my beard is gray, definitely used a lot of WD40 in my time...and come on, you have to be old enough to remember hair spray flame throwers, and mixing pool acid and alluminum foil? cannon fuse, gun powder, in an empty co2 thing? ahhh!! the 80's!

Right you know, that was fun.
The WD-40 also worked great in potato cannons.

Now "fun" like that gets one on a terrorist watch list.

Although we used lye and aluminum foil, and now buying the lye gets one a meth lab watch list.
We would do the lye and foil in a coke bottle, put a balloon over the neck to catch the hydrogen gas, then tie off the balloon and put a piece of yarn about two to three feet long, light the yarn and let go of the balloon. It would rise 50+ feet and then voom as the flame hit the balloon. redneck fireworks
I'd hate to know what kind of trouble one would get in these days for stupid stuff like that.

 

[mbronkalla]

vaseline and many other pretroleum lubes will cause the o-rings to expand and then the connections to stick. Pure silicone is usually OK. Check a local scuba shop they use it on the air regulators and other parts.

 

[bracconiere]

Now "fun" like that gets one on a terrorist watch list.

well, i'm glad that i had fun like that...or i'd be to scared to think for myself, and probably in prison hooked on drugs....

 

[Buckeye_Hydro]

vaseline and many other pretroleum lubes will cause the o-rings to expand and then the connections to stick. Pure silicone is usually OK. Check a local scuba shop they use it on the air regulators and other parts.

https://www.buckeyehydro.com/oring-lubricant-food-grade/

 

[NightFlight]

well i've never had luck seeing bubbles. but i keep my cylinder on a scale, and can see if it loses even an ounce quickly....

and this is an uncarbed keg?

Yes

 

[NightFlight]

with the cylinder shut off right?

Yes. The pressure drops with the cylinder turned off, when connected to Keg. Does not drop when decoupled. Regardless - after submerging everything, I know I must be just watching absorption. If you shake the crap out of a fresh keg with 30psi on it, you can hear the low pressure valve in the regulator do its thing, just like when your filling a glass. I guess water likes Co2 enough you can watch it or hear it happen.