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Originally Posted by Covey WELCOME TO 3REEF!
Your right that is just a check valve to draw air out of the top out the U. It isn't wholly nessary because air never seem to build up but it does make it easier to prime. You just suck air out of it until it start working. I have had thing for 9 months now and it has NEVER lost it siphon. |
Thank you.
So is it possible to prime it simply by sucking on the vent tube?