Quote:
Originally posted by Turbokeu
I will try to explain why I think my airtrap works so well.
(Sorry for my poor paint skills... )
The 1/2" tubing is connected to a 20mm ID (3/4") T-part, thus slowing down the water velocity.
The water entering the T is then divided in two streams:
- a little stream going up in the "reservoir".
- a big stream going down by the suction of the pump.
As most of you know, air trapped in the circuit is "mulched" into microscopic air bells by the pumps impeller when passing through it. Those microscopic air bells (more like foam) need some time to go up and reach the water surface.
The little water stream entering the reservoir creates a very slow vortex (you can see it when you look very close) before returning into the T again.
This vortex gives the microscopic bells the time to reach the water surface.
At every passage of the water through the T, a part of the water looses its air.
From a "milky" solution my airtrap clears the water in about an hour, leaving just a layer of foam for a couple of hours on the surface of the water in the reservoir.
CD 
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Sure, but it would work BETTER if you had the input of the resevoir farther above the output - giving more time for air bubles to rise. As it is now, because water into resevoir=water out of resevoir, vast majority of water is sucked right back into the nearby outlet before the bubbles can rise. An hour is a LONG TIME. figure you have a max of what, maybe a liter or two in your system? And your flow rate is prolly 4lpm, maybe more - just a non-informed guesstimate (WAG) - so your water must pass through the "Air trap" 120 times to rid itself of air?
Your design is adequate, and looks very nice - but it is far from optimal.