[Nordic]

I really don't get this talk about keeping the air-trap at the highest point in the system. Sure it works like that if you have a pool of water as all the bubbles will merge to the top as they rise. But in a closed loop system all that matters is that you have good circulation so that the air bubbles are brought to the air-trap. Think of it as a bucket held upside-down in the water several meters below the surface of a big pool of water. What matters here is that all of the water in the system will pass by the "bucket", the air-trap, and it will fill with air eventually.


In places where circulation is slow, like in a large heater core, it is a good idea to keep the exit/entry fittings of that component at the highest point related to itself, topside if you know what I mean (english is not my mother tongue).

The exit/entry of that component does not necessarily have to be below the air-trap, it serves no purpose unless you have a really unique routing of your hoses where all bubbles will rise to the air-trap without circulation in the system - which is really ridiculous. But keeping the fittings topside will make it harder for bubbles to resist the flow in your lines and be dragged along until they pass the air-trap.



Ok, perhaps I've pointed out something obviously untrue here.. please say so if that's the case.