Where we were discussing laying a CO2 cylinder on it's side inside the fridge. The mention of a anti siphon tube was brought up to protect against liquid in your lines.
Well, it looks like someone else is installing the tubes for 7 bucks. Ive installed anti siphon tubes on 20 oz CO2 bottles without a problem or failure ever. The theory is exactly the same. I think I may call this guy to see what he says about installing one on a 10 lb bottle. being able to lay the bottle on its side will save a lot of room, and one less hole to drill in your fridge.