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What makes a bell siphon an Affnan siphon?
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Author:  BenBrewcat [ Oct 25th, '13, 00:09 ]
Post subject:  What makes a bell siphon an Affnan siphon?

As near as I can tell the differentiating elements are:
1) a funnel to focus the uppermost inlet,
2) a stricture (reduction in standpipe size) below the level of the GB floor, and
3) perhaps a drain trap (U-bend) below that stricture.


Reasoning: all to form more vigorous suction and flow at actuation, preventing equilibrium flow?

Author:  helomech [ Oct 25th, '13, 00:13 ]
Post subject:  Re: What makes a bell siphon an Affnan siphon?

Mine is exactly like any other siphon, except for the larger adapter on the top. I use 1" standpipe with a 2" adapter on top of it. No reason for U-bends or anything else. It just causes more water to flow into the opening and letting the siphon start easier.

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