Have a True TDD-2 two separate towers, recently noticed that one of the sides gets tiny bubbles in the beer line directly above the keg coupler. If you tap the line lightly with your finger bigger bubbles will come out of the coupler into the beer line. The other side gets no bubbles ever in the beer line? Coupler was used, washers to me looked like they were in decent condition on it though. C02 is @12psi Any advice of what to do to fix, is appreciated.
Welcome Keanis. Bubbles in the beer line directly above the coupler are a result of CO2 breaking out of solution. You are going to want to increase your applied pressure slowly to fine-tune the balance of your system. Start by turning the adjustment screw on your regulator clockwise 1/16 of a turn. Pull an ounce of beer thru to erase the bubbles and then recheck the system in an hour. Keep adjusting hourly until the bubbles have disappeared. Note: Temperature and pressure are directly related. Try to keep the box as cold as possible while making these adjustments in an effort to keep the beer at a constant temperature during the entire process. A good flashlight will make this easier and quicker.
Please let us know when you get this dialed in. People who search these forums seldom know whether to follow the advice given if there is no posted resolution.
Force balancing a system can be just that easy...and I love a happy ending. Thanks for reporting back!
Follow up question, the temperature has dropped outside so my garage went from low 70’s to high 50’s. The Regulator went from 13 to 14 on its own, i set it back to 13 crazy bubbles, more than before. So now 14 seems to be the setting... but the beer is kinda harsh on the mouth at 14 i feel.
Your garage temp doesn’t matter, what matters is the resulting temp of your beer. Temperature and pressure are linked and as temp goes up, pressure has to too. So if it got warmer in the garage and your cooler couldn’t keep up, the beer got warmer and needs more pressure.
Hey guys, im stumped. 13 psi removed bubbles from the beer line, than 14psi, than 15 psi, now its at 16 psi..... the liquid temp is about 37 deg so why do i need to keep increasing the psi every couple days as the bubbles will just form in the line again... at 37deg should not be at 16psi...?
Before anything, liquid temp is important. "About 37 degrees" is not good enough. Because temperature and applied pressure are related, we want to know the exact temp of the beer, measured with a decent thermometer. I am guessing that your temperature not stable. Basically, temperature and applied pressure are physics. If your keg is really 38F, and your regulator is really applying 12 psi, you will have 2.58 vols of carbonation. This is right near the typical keg but not always. Cheers
Sorry i meant to say 35, it fluctuates between 35.1 to 35.4 if you do the pour a full beer and than test the 2nd full beer immediately.
