I have just finished building my refugium/sump area and it has passed the leak test! Now my question is. The part in question would be the 90 degree fitting that goes from the pump to the bulkhead on the skimmer itself. The 90 elbow is very loose where it goes to the skimmer and very thight where it goes to the pump. What should I do about the loose fitting. I would rather not glue that, could I wrap it with teflon tape and hope for the best? I don't think that is going to work because it is too loose. I am afraid that I am going to have to glue it arn't I?