I place the two T at the top, so they function like an air-trap. Then I take the IN T and add a hose and fasten that higher then the rest of the system.
The other T (OUT), (wiche is place right after/before the other T (IN)), I add a hose to that too, but that hose I place belowe the rest of the system. and when I open that one (OUT), then the water would drain trough that T (OUT), and I dosen't turn the pump on or anything? (I assume that the IN and the valve in the middle (betwen the two other T)are closed).
That did get long, but I want to be, 110% sure that I don't do anything wrong.
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