The Man Hole, now deemed a politically incorrect term in some quarters for reasons unknown, is the portal through which one enters the Inspection Chamber.
BTW: It is unwise to post an e-mail address in an on-line forum. They are easily harvested by spam-bots, rendering the address practically unusable in short order.
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The elephant is a funny bird. It flits from bough to bough. It lays its eggs in a rhubarb tree and whistles, like a cow - Spike Milligan.