Gas lines & John Guest fittings

[Scriv]

If you have John Guest fittings on your kegerators gas side, can you tell me what tubing you are using? I'm having a hard time with leaks and I think it may be the tubing I'm using (1/4" od vinyl). I tried subbing in some semi-rigid PE tubing, but that seemed to leak more than the vinyl. I'm at a loss here, and I need this thing up and running by next weekend.

I have John Guest with Bev Flex Ultra on the liquid side, no leaks at all.

 

[medicmike63]

I am using 8mm poly tubing with John Guest fittings for the gas side of my keezer. Works well, no leaks. Had a surplus of both from work, same thing we use to plumb compressed air to the printing presses.

 

[Buckeye_Hydro]

Vinyl tube? As in the soft clear PVC tubing? If so, that tubing is not appropriate for quick connect fittings. That tubing should be used with barbed fittings. You need a more rigid tube for quick connect fittings.

Russ

 

[Scriv]

Vinyl tube? As in the soft clear PVC tubing? If so, that tubing is not appropriate for quick connect fittings. That tubing should be used with barbed fittings. You need a more rigid tube for quick connect fittings.

Russ

As I mentioned, I have some PE tubing as well, both types will lose 1-2psi per hour when I pressurize the system and shut off the tank. I'm now in the process of resealing the 4 way secondary, maybe it's leaking. Soap on all connections show no bubbling.

 

[Scriv]

Looks like I have a couple ball lock gas disconnects that are leaking, I hit each one with 50psi and dropped some soap in and they make very fine bubbles. I'm going to try to disassemble & check the o-ring, but may just end up replacing them.

 

[orangehero]

Many use 1/4" OD polyurethane tubing for CO2 lines. Main benefit is that it remains very flexible at lower temps.