I initially thought my Auto Syphon was a nifty bit of kit for starting off the syphon flow. However, recently I had thought it was getting a little temperamental and Friday night when I did a double bottling session, my main 2 brews for the summer, was a complete disaster. The Syphon kept spluttering when it should have been in full flow, drawing in lots of air between the 2 tubes until it would get so bad that the flow stopped altogether. This meant that I had to keep restarting the Syphon and as I got further down the fermentation bucket the pumping action to get it restarted caused lots of disturbance in the sediment at the bottom and I was transferring lots of the sediment. I got through the first brew like this but it got so bad on the second brew that I just had to stop. Fortunately I remembered I still had my old glass racking cane and a length of unused tube so I dug this out and hopefully sanitised it well enough and managed to use this to finish off. It was the early hours of the morning by now so I wasn't prepared to mess about further and resorted to sucking the end of the tube to get it started. So the result is I've now got over 60 bottles of very cloudy beer, which hopefully will clear given time, the risk of oxidation from the oxygen introduced and the risk of infection to the second brew because I sucked on the tube. Has anybody else had this problem with auto syphons? Mine's going in the bin and I'm reverting to the straightforward racking cane. I've looked up on YouTube the correct method of starting a syphon by filling the tubing first with water and/or sanitising fluid and will use this method in future.