ADA Gray Parts CO2 line keeps popping off diffuser

[bereninga]

I have the ADA Gray Parts set and the CO2 line keeps popping off my diffuser!

Does anyone have a good solution to keep this from happening?

I tried the idea posted in another thread in which you have to stretch the line w/ needle nose pliers and then quickly slide the line over the diffuser, but the line still popped off by the next day. Any other ideas that are bulletproof? It's such a pain to monitor the line to make sure it doesn't pop off again.

[ADAtank]

is the diffuser ADA as well? If so try keeping everything dry before you put it on or maybe try to use a new piece

[bereninga]

Yep. The diffuser is an ADA Pollen Glass Large 20. I will try fitting it dry and see if that helps. Thanks for the tip!

[Jeff5614]

Lower your working pressure.

[Chlorophile]

Originally Posted by Jeff5614

Lower your working pressure.

The pressure in the line is dependent on the flow rate through the needle valve and the resistance of the diffuser, lowering his working pressure wont alter pressure in the tube - only lowering your bubble count will do that.

[oldpunk78]

Originally Posted by Chlorophile

The pressure in the line is dependent on the flow rate through the needle valve and the resistance of the diffuser, lowering his working pressure wont alter pressure in the tube - only lowering your bubble count will do that.

This is incorrect.

A flow control valve has nothing to do with pressure. It controls flow, that's it. The regulator itself is what sets the working pressure. The working pressure is what's in the line going to the diffuser. It's flow rate is set by the needle vale.

[samamorgan]

The pressure in the tube with some form of diffuser on it is dependent on the pressure at which the diffuser releases Co2.

[galabar]

Originally Posted by samamorgan

The pressure in the tube with some form of diffuser on it is dependent on the pressure at which the diffuser releases Co2.

That actually doesn't have to be the case. You can raise the pressure higher than the diffuser can handler. Not all CO2 will escape quickly enough and the pressure will build up higher than the "working" or "cracking" pressure of the diffuser.

[Chlorophile]

Originally Posted by oldpunk78

This is incorrect.

A flow control valve has nothing to do with pressure. It controls flow, that's it. The regulator itself is what sets the working pressure. The working pressure is what's in the line going to the diffuser. It's flow rate is set by the needle vale.

...lowering your working pressure won't affect the pressure in the co2 line. That is determined solely by the amount of pressure needed to force gas through the diffuser media.

Altering the working pressure will change flow rate, so yea if you raise it you will change the pressure in the co2 line.

But assume you want a constant flow rate.
You can set your working pressure to 5psi, if that's enough to push co2 through the diffuser then raising your working pressure will increase bubble count/flow rate, that would increase pressure in the co2 line, but if you reduce flow rate to maintain a specific bubble rate the psi will be what is needed to push enough co2 through the diffuser to maintain that flow rate...
That's pretty irrefutable.
Working pressure obviously alters the psi in co2 line, but If your maintaining a constant flow rate then the pressure in the line is the same no matter the working pressure, I.e whatever is needed to purge at that rate......

[Chlorophile]

If co2 exits diffuser faster than is supplied by needle valve pressure falls.. If co2 enters faster than it can exit then pressure rises.. This is independent of working pressure... It's relative to input vs exhaust, working pressure just controls the limit of pressure build up, if pressure on the outside of regulator exceeds working pressure then regulator doesn't permit more gas to exit...

This should be obvious because if you remove restrictions from outlet the working pressure gauge reads 0.

[Chlorophile]

A more restrictive diffuser or a higher flow rate are all that effects line pressure.. I could set working pressure to 60 but Have 0 psi in the line if I shut the needle valve. I can open the needle valve and psi in the line is NOT instantly 60, if it were loads of co2 would come out of the diffuser. Huge bubbles.

You might be confused because it doesn't work the other way, a low working pressure wont allow pressure to build up until it is high enough to go through the diffuser, but that's obvious, working pressure is the limit, not the minimum.
Hope that clears things up.

[oldpunk78]

^ I'm sorry, but you still don't get it.

[Bettatail]

what air hose you use?

get a slightly smaller ID air hose will fix the problem.

Oldpunk, pm'ed.

Chlorophile, friend request sent.

[Chlorophile]

Originally Posted by oldpunk78

^ I'm sorry, but you still don't get it.

Maybe you could explain it to me then?
I'm 99.9% on this.

Take the diffuser off your co2 line and then tell me that psi in the line is = to working pressure?
It is not.

[oldpunk78]

Originally Posted by Chlorophile

Maybe you could explain it to me then?
I'm 99.9% on this.

Take the diffuser off your co2 line and then tell me that psi in the line is = to working pressure?
It is not.

Sorry dude, I totally miss read one of your posts. I should have been more diligent with my reading before I accused you of being wrong.

I would also like to aim an apology at the op for cluttering up your thread. I hope your issue has been resolved.