« Last post by mabrungard on Today at 01:41:09 PM »
martin - dumb question, I don't understand what purpose the tube is serving? do you fill it with CO2? how is it different than the other ambient air?
The tube is a regular blow-off. Its advantage is that it takes a lot of internal volume change to actually suck back air into the fermenter.
There is a gas-in corny post fitted onto the top of the fermenter. During lagering temp step reductions and during beer transfer, I supply CO2 into the fermenter via tank and regulator. You can just barely see the corny post in the picture I posted.