Good Morning DRH,

Well...Oliver did a real good job in explaining in detail your problem, I was wondering if it help? I went though all of the same problem and all of the detailed explanation over 3 years ago. I seemed to me to be way too complicated for anyone newbie to follow.

I finally gave up and made a much easier, cheaper siphon, which has been operating now for over three year. with no cleaning & almost no tweaking.

Take a look a "Pipe Siphon by Apollo", let me know what you think about it...it would be nice to hear back from you or anyone else having this problem.

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I HAVE NOT FAILED. I'VE JUST FOUND 10,000 WAYS THAT WON'T WORK. Thomas A Edison