Foamy Beer Despite Cooling Tower

Let it ride and stop messing with it. Give it at least a full day. Stop adjusting, because you have gone up, down, sideways and nothing fixes it, right? That is because corrections take a while.

A few things.

• Be sure the cooling hose is all the way to the top of the tower. It should be up to the shank. You extended the distance from the height of the tower to the faucet with the 3 inch gap. Add an extension to the tube. A few inches of gap will make a difference. Check to be sure there is a flow of air, put it to your ear for example.
• 37 or 38 is fine. But everytime you adjust the temperature you also change the vols, because cold liquid holds more gas than warmer liquid. Check the actual temp with a good thermometer. Put a glass of water inside, wait an hour or two and check that. Don't assume the T-stat is accurate. And use a good thermometer!
• A keg of beer needs about 12 hours for slight adjustments to matter. Going from 39 to 37 will not happen until the next day, so be patient. Make one change at a time.
• Screwing with the psi is only making it harder to diagnose. Adding or decreasing pressure, each time it is screwing with the packaged vols. Good luck getting it back. Combined with the temp changes you have little chance of knowing what is correct.
• Once it settles, add pressure until you do not see any bubbles rising out of the coupler. Coors light is going to be a tough keg to balance. It just is.

And still, the best kegerator set up will have a quick burst of foam, because there is no perfect way to cool a tower with just a fan.

Cheers.