I brewed a magic hat #9 clone last night and after 18 hours I'm not seeing any noticeable yeast action.a few his ago I went on the white labs website and read that WLP002 tends to flocculate and sometimes gets stuck in the trub. They recommend shaking the fermenter every 15 minutes or so for the first few hours after pitching the yeast to keep the yeast suspended. Unfortunately, I didn't know this until today. I have started shaking it now but um concerned ours too late. another problem is I have to leave tomorrow on a five day business trip and I won't be able to keep an eye on things. If I don't see any visible action by tomorrow I'm thinking of dumping a packet of dry yeast in to jump start things.any thoughts?