Switching gas lines to EvaBarrier / Duotight

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OK. Seems like if you twist the tubing the steel teeth might damage it.
The one I recently received appears to be the same shade of grey as the one purchased a year ago. This is the flare to 8mm evabarrier variant.

Twisting also makes me a bit nervous, i am going to go straight in and then check for leaks.
 
I think those fittings that incorporate a ball valve, the threads are straight, not NPT, and there is a plastic seat that seals against the ball. Sometimes there is a sealant/thread locker on the threads too.
 
I think those fittings that incorporate a ball valve, the threads are straight, not NPT, and there is a plastic seat that seals against the ball. Sometimes there is a sealant/thread locker on the threads too.
Yeah I ended up buying a new valve for the regulator and a new manifold that has flare fittings. This allows me to just attach the flare to duotight adapters.
 
I’m in the process of replacing all duotight fittings
I’ve found that if the hose isn’t dead straight coming out of the duotight it will leak (both gas and liquid)
Going back to hose barbs and clamps
 
I’ve found that if the hose isn’t dead straight coming out of the duotight it will leak (both gas and liquid)
I have not had this problem and my gas an beer lines are all coiled up inside my kegerator. I do use these but I'm not sure if that matters. It is important to cut the tubing straight so it seats fully and lets both o-rings seal.
 
I’m in the process of replacing all duotight fittings
I’ve found that if the hose isn’t dead straight coming out of the duotight it will leak (both gas and liquid)
Going back to hose barbs and clamps
I have both liquid lines on duotight and have had no leaks. As @mac_1103 said, having perfectly straight cuts and seating the end of the line onto the duotight rubber gasket perfectly flat is critical.
 
fwiw, I have ~50 push-to-connect fittings in service, mostly JohnGuest, with six DMfit tailpieces and 3 Duotight 14" FFL to tubing on regulators. I have zero problems with any of them, and inside my keezer at least there are plenty of sub-optimal tubing entry angles going on.

I think one can reduce the potential for leaks by ensuring the tubing is fully inserted into the fitting, and the best way to make that happen is to use a sharpie and draw a circumferential line to show the full insertion depth on all tubing ends. For JG fittings, that's 7/10ths of an inch from the end. From my own experience I've come close to believing I had a line fully inserted but upon checking found that was far from true.

In theory the Duotights should be even more accepting of a less than straight-in insertion with their dual O-rings...if the line is inserted the full depth...

ptc_insertion_depth.jpg


Cheers!
 
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I just found out that MoreBeer plans to carry the Evabarrier red and black colored 8mm tubing sometime in the near future. See https://kegland.com.au/products/eva...lV2iY-wkVUnb2qxZ6UzO8TlTKR-ll0ocDnOoU5ZINMvyg
I plan to wait until this is available to replace my gas lines. I find that having different colors for beer vs. gas is a big help in my keezer (together with using different color o-rings on my corny keg posts).
 
I just found out that MoreBeer plans to carry the Evabarrier red and black colored 8mm tubing sometime in the near future. See https://kegland.com.au/products/eva...lV2iY-wkVUnb2qxZ6UzO8TlTKR-ll0ocDnOoU5ZINMvyg
I plan to wait until this is available to replace my gas lines. I find that having different colors for beer vs. gas is a big help in my keezer (together with using different color o-rings on my corny keg posts).
Interesting, Ill likely replace my recently purchased clear lines with these red ones and use the clears for bev replacement down the road..do evabarrier lines ever get stained? Mine still look perfect after 1+years.
 
My liquid lines are still clear after a few years of use. Just rinse them with PBW and hot water every few kegs. I use this to flush the lines. Makes it a breeze. https://www.morebeer.com/products/b...Fqhc5zAk77d0JMxthP97vxWnybr9llTsaAg3SEALw_wcB
Cool yeah i clean by beer lines using that same device between kegs, makes it super easy. I haven’t let my evabarrier lines soak in pbw yet because i didn’t see a need. I prefer to not remove the lines from the duotight connectors too many times, since i know they have a nice seal, but i may be over thinking it
 
......until you have beer backup in a gas line. If it's not clear, how would you know it needs cleaning?

Personally I use different colored zip ties on the ends of all my lines.
 
......until you have beer backup in a gas line. If it's not clear, how would you know it needs cleaning?

Personally I use different colored zip ties on the ends of all my lines.
Doesn’t the color of the QD also tell you what the line is? Why use a zip tie?
 
Yes, but you can differentiate between multiple gas/beer QDs or which tap the QD belongs too.
But the goal is identifying what is in the line, beer or gas, not which tap its for. For that I have a little sticker on the QD.
 
Success, now just crossing my fingers for no leaks.

I did notice a difference in the 1/4" flare to duotight connectors when comparing those I bought over a year ago to the ones I just received.. The older ones have a gray ring where the tube goes in, and the newer ones it is black.

IMG_1749.jpgIMG_1748.jpgIMG_1750.jpg
 
I would love to convert once the red EvaBarrier hose becomes available, but my 6 way and 2 way gas manifolds have barbed valves on them and, despite by best efforts, I can't remove them. I have tried unscrewing the barbed valves to replace them with threaded valves, but can't get them to budge. I do not want to spend the money to buy new manifolds which can be expensive, particulary since my current gas set up is working just fine.
 
I just found out that MoreBeer plans to carry the Evabarrier red and black colored 8mm tubing sometime in the near future. See https://kegland.com.au/products/eva...lV2iY-wkVUnb2qxZ6UzO8TlTKR-ll0ocDnOoU5ZINMvyg
I plan to wait until this is available to replace my gas lines. I find that having different colors for beer vs. gas is a big help in my keezer (together with using different color o-rings on my corny keg posts).
I bought a pack of different colored rolls of tape. Had the whole Roy g biv colors plus gray and black.
All the gas lines have a blue tape near the post connector and all the beer lines have orange.

In addition to that - taps 1-6 follow the Roy g biv sequence with a tape wrap every 8" or so.

Makes it easy to decipher gas line 3 - the one with blue on the end and yellow stripes. Etc.
 
I would love to convert once the red EvaBarrier hose becomes available, but my 6 way and 2 way gas manifolds have barbed valves on them and, despite by best efforts, I can't remove them. I have tried unscrewing the barbed valves to replace them with threaded valves, but can't get them to budge. I do not want to spend the money to buy new manifolds which can be expensive, particulary since my current gas set up is working just fine.
I had the same issue with my two way manifold and had to buy a replacement. The hex nut on the fittings were getting mangled in the process of trying to remove them. I wonder if the manufacturer used an adhesive to help prevent leaks.

My current/now previous gas setup was fine but I wasn’t a fan of those heavy duty red lines and my kegerator sees mostly NEIPA’s/WCIPA’s, so potentially cutting out some more o2 with evabarrier only helps.
 

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