We were swimming yesterday and got a little rowdy. In the end I heard the pump lose prime. The culprit I found was a stuck Weir. I poked the weir and to my surprise it snapped from the rotating portion near the bottom. The skimmer is a Sylvan skimmer and I found potentially correct parts (though if anyone can suggest proper part numbers and the best places to buy them I would be most appreciative.) . I took a cursory look in there and I couldn't see how to remove the old rotating portion adn install the new Weir. Is there a technique I am missing?