Bassmaster61, what you described is sort of what i had envisioned but wasn't sure whether or not my idea was sound. One thing that concerns me is that my steel pipe has a 1-2" "hood" covering a the top part of the opening (hard to describe. My understanding is this has something to do with reducing turbulence/air while draining. I have no engineering background and am not sure how important this is, and whether or not an "extension" pipe should have a similar opening. Thoughts?

Thank you for you input.

David