I'm fairly new to homebrewing, only done a few batches. So I heard how great this auto siphon gadget is, but I did not have very good luck with it. I started it in a couple pumps and it flowed until about 4 or 5 inches from the bottom of the fermenter bucket. Must have been about a gallon of beer left. I tried restarting and I just ended up blowing bubbles in the beer. I was disappointed. When I manually siphoned and tipping the bucket, I was able to get pretty close to the bottom. Anyone have this type of problem? I don't think I lifted it above the wort and I don't think I stuck it down too low either, I think it just stopped.