So I received my pentair- Im so excited. Can someone please tell me do I absolutely have to glue the slip to my barb in this pic? I plan to change the whole to grey. Also I am having trouble with the balance of the quartz sleeve and the o ring with the rubber gasket. is it supposed to have a little tiny bit of ability for movement after being screwed down so tightly before I place the module in place ? When I receive my proper plumbing parts tomorrow I will try the leak test.