I have a DE leak that I’m trying to correct. I thought it was the Flex Air Relief Assembly, as the fabric on that had a tear in it, but I still have the leak after replacing that part. I have a new set of grids and also bought the manifold, just in case I overlooked a crack. However, the new manifold does not have the Flex Air Relief Assembly. It has a perforations in the area where my current manifold has the flex assembly. See picture below. When I look at Hayward’s parts diagram, they still show the flex air assembly. I’m wondering if maybe I was sent a non-OEM part. Has anyone else seen this and what are the opinions of using this manifold? Thanks!