Kegged a homebrew ipa about 5 days ago. Just realized I put a liquid post on the gas side. How bad will i screw up the carb levels if i quickly switch them out?
I'm not sure exactly what your current configuration and gas/carb status is, but in general... - Turn of the gas - Disconnect any gas/liquid disconnects from the posts - Release the pressure in the keg's headspace. - Rearrange your hardware to correct configuration - Purge the keg's headspace with CO2 - Commence/recommence carbonation
You won't lose a significant amount of carbonation. You'll pretty much pick up where you left off. How long does it take for a glass of beer to go flat after pouring? It's kind of the same thing.