My Geo Reactor is pretty old. I'm guessing 15+ years. I don't know if I just need to replace but I'm getting a lot of issues with leaking. At first it was the uniseal which I replaced but now it appears to be more of the black elbow that goes into the uniseal. It's a very loose fit. Is this something that can be replaced or anything I can do? The uniseal actually doesn't fit well either. I'm not sure if there is supposed to be a gasket or anything. Please advise.