Hey guys just wanted everyone's advice on this situation. I brewed two, 1 Gallon batches on Friday, one a Simcoe Pale Ale with an OG of 1.052 and a Brown Ale with OG of 1.049. I cooled both down to around 56F and pitched half a vial each of WLP029 Kolsch Yeast. It the past I have not had problems pitching 1/2 vial of WLP yeasts into 1 Gallon batches, I always hit my FG. It has been 48 hours since I pitched the yeast and there is zero activity. No airlock activity and no krausen in either. I moved both to a warmer area to warm them into the low 60's in hopes of getting some results. I plan on testing tomorrow to see if the OG has moved at all and if its just quietly fermenting. How much longer should I wait before pitching more yeast if no activity occurs?