How do YOU spell siphon/syphon ? I've been spelling it syphon all my life, as far as I recall. I just moaned to t'missus (a linguistics graduate) about Amercian spell checkers not liking that, and she said, well, that's because it IS spelt with an i. And she got out our 2 volume Shorter Oxford English dict to prove it. Sigh. Just looked at an online homebrew shop webpage that has it both ways in adjacent sentences...
my parents were killed by a python you insensitive clod