I have always done pump pump squeeze, let off nipple and tighten. For a completely empty system you won't have any pressure until it starts to fill with fluid. Maybe 3-5 rounds of this.
I have always done pump pump squeeze, let off nipple and tighten. For a completely empty system you won't have any pressure until it starts to fill with fluid. Maybe 3-5 rounds of this. Must be some mechanical issues then.