No more auto siphon for me..

[poislb]

You run the same risk when you ferment and say your blow off tube clogs up, or even the airlock...1 lb of psi is all it takes to get the beer flowing, then shut her down..I'm pretty sure there's more co2 pressure when your fermenting. Just don't do a 5 lb co2 burst in the carboy. This is why I regulate it with the shut off valve as shown in the video...everything we do in brewing we run into the risk of something going wrong, just the nature of hobby...

You have a better chance of dropping a carboy then having it explode with a little co2...

 

[chicagowaterguy]

I'm not sure that purging your keg with CO2 before transfer is really adding any benefit. After all, people who bottle their beer don't "purge" their bottling bucket before transferring the beer into it - they just rack it straight in, then bottle, and bottled beer isn't all oxidized, is it?

Secondly, let me save you some searching down the road and just give you a link that should come in handy eventually.

Bottled conditioned beer isn't generally oxidized because the yeast will scavenge up any O2 picked up during bottling.