So I've been brewing AG for several years and have never had an issue with basic siphoning from the fermenter to the bottling bucket (I use an auto-siphon). A couple brewings ago, I was having issues drawing air into the auto-siphon and also losing the siphon altogether. I usually use a mesh bag over the end since I dry-hop quite a bit. I thought maybe that was the issue but I still had the problem after removing it. Sooo, I bought a new auto-siphon thinking maybe the seals had worn but on my last two beers, same thing happened and lost nearly 2 gallons on each one. Very confused on this as there are a ton of bubbles when it siphons and at times it completely stops. Fermenter is always on kitchen counter with bottling bucket on floor . I even had to resort to adding water to the hose and tried to start my own siphon today but I couldn't even get that going. Any words of wisdom here?? I'm amazed that this problem is plaguing me and I need to solve it before my next batch.