Hello, new to the forum but not so new to winemaking. Started BK (before kids) in the 1970s and just restarted making dry wine from New York Finger Lakes area grape juices (white only). Siphoning during racking has always been a challenge. We used to manually start siphons - yes by sucking on the tube till it started. Then I found a manual siphon pump tube contraption which was very effective blowing lots of air into the carboy but eventually starting. Better, but less than ideal. Finally I bought a one gallon/minute wine/beer siphon pump from Northern Brewer; mounted it on the wall and gave it a try. It worked a few times and I really liked it but it quickly began pouring out tiny air bubbles from the output line. Input line was perfectly clear and bubble free. I tried repositioning the pump and tightening the lines - no improvement. I texted Northern Brewer and they promptly offered to send me a new pump, saying maybe the diaphragm was bad. Great customer service. Pump arrived and it worked for one 6 gallon carboy then pumped very excessive tiny air bubbles - almost like total froth. I again tried repositioning, changing height, tightening lines, etc - no improvement. So I have two questions: first, is it the pump and if so is there a better one out there to make siphoning easier? I make about 40 gallons of wine annually and a pump would be a welcome addition. Or second, should I just revert to the old fashioned manual siphoning? What do most 40 gallon/yr wine makers do? Thanks