I have the Blichmann 14 gallon conical fermentor and have brewed about 10 batches of beer with it. One of the main reasons for getting the conical was to harvest the yeast. I have been unsucessful in getting the yeast to empty out the bottom valve.
I have typically been waiting 10 days for fermentation to complete, then opening the bottom valve to collect the yeast sediment. When I open the valve, nothing flows out. I have removed the airlock to release the vacuum and even tried adding CO2 pressue to force the yeast out the bottom and nothing has worked.
After cleaning the connical, the yeast at the bottom valve is very thick and stiff and mixed with bits of hop pellet leftovers from the boil. It is so thick that I have to forcably shoot water into the conical to clean it out.
How are others that use conicals harvesting yeast? Am I doing something wrong?

