Sorry if this has been asked am bunch but I am brand new to casting and just purchased a brand new lee 4-20 bottom pour pot from midway usa. When I screwed on the handle I noticed immediately that I could not lift the handle to allow the lead to pour. Keep in mind there was no lead in the pot and its brand new. I'm sure its something silly like some simple adjustment I could make but I feel like the pour handle should move freely and I should be able to see something move in the pour spout. Has anyone experienced this? What's the remedy for it?