I am a very visual person - just as anyone who has tried to give me driving directions, street names are useless to me, I need landmarks.
Anyway, I’ve been struggling we a problem. I finally found the solution.
What is this ? (click on image for a larger view)

When I was growing up, “tanking” was a bad thing. To “tank” was slang for “a very bad performance” as in “tanking on an exam” and “tanked in the final game”.
Anyway, it was with a bit of humor that I find the term “tanking” is also used describe the complete waterproofing of a [...]