In that case you'll need to prime your bottles/keg as normal - you could try using the plastic barb on the butterfly valve with some tubing to fill from, to minimise O2 pick up (although I haven't tried this myself). Its only worth buying the pressure lid if you have corny kegs and CO2 to pressure transferthanks for your reply, at the moment just using it with an air lock - is it worth buying the pressure kit - does it make much of a difference?