Originally Posted by Tommyb52
I brewed this recipe on Sunday and as of this morning(Tuesday) the double air lock isn't bubbling put shows signs of pressure because the water levels are about a half inch apart. Is my wort under aerated?
Don't trust the airlock...are you using a carboy or a bucket? If its a bucket, quickly open the lid and check to see if you have foam, krausen or bubbles. If you see that, it's fermenting fine. Sometimes wlp 400 can produce thick krausen which doesn't allow the CO2 to escape.