Originally Posted by JustinSane
What is a CO2 push to keg? A picture of your setup with the washer and the nylon material would be awesome. That sounds like it would work well.
Ok, so I use the longer rig on the carboy holding beer, snap on a gas QD from one of my CO2 systems, then either attach the tubing with the black beer QD if I'm transferring to a keg, or the plain tubing to connect to the shorter rig if I'm racking to a clean carboy for "secondary" purposes (these days I only do this for my stouts, fwiw). The SS washer is ~1-1/8" OD and is inside a piece of nylon hop bag material roughly 4" square rubber banded to the end of the longer dip tube.
The "push" rig (longer) has worm clamps everywhere to conserve CO2. I found without them the cap would leak around the carboy neck and around the dip tube, and of course the gas connector itself.
I start out with everything connected and the long dip tube pulled up above the beer line. If I'm racking to a keg I lock the manual PRV open, turn on the CO2 at about a half psi, and let the system flush for awhile. Essentially the same if racking between carboys, just no QD or PRV involved.
Then I submerge the diptube in the beer to within an inch or so of the yellow marker to get the beer moving. Near the end of the transfer I'll slide the diptube down so the washer rests on top of the hops and trubby substrate and can draw the whole carboy virtually dry without issue - and leaving all the debris behind (not quite done with that last pic but getting there).
As I exclusively "slow carb" (aka "set and forget") there'll be a good two to three weeks minimum at dispensing temperature in my carbing/cold-holding fridge for any smaller bits to settle out on the bottom of the keg. Typically there's just a coating left, a couple of tablespoons at most...