Modern plumbing? (was:If DD knows, then why...?)

[bufo_viridis at interia.pl]

No: HPFGUIDX 94157

> Carol:

> Professor Binns's comment that "the school has been searched for such
> a chamber, many times, by the most learned wizards and witches" (SS
> Am. ed. 151). This group includes DD because Binns adds, after arguing
> that the Chamber is a mere legend, "If a long succession of Hogwarts
> headmasters and headmistresses haven't found the thing-- . . . I
> repeat, if the likes of Dumbledore--" (152). [snip] Or, as Binns reluctantly tells the students, only the Heir
> could unseal it (151), but evidently once it had been unsealed,
> another Parselmouth could open it [...]

Probably it has been discussed before (sorry in such case.) SLytherin built in the Chamber of Secrets ca. thousands years ago. The ntrance to the chapter is behind the think on which tap there is a tiny snake engraved. 
Was such modern plumbing available at Founders' times? Or the ntrance then was masked by stone basin with cold water and in the course of Hogwarts many rebuilts magically "transplanted" itself onto more modern homologue?

So the professors might have searched in vain, since the entrance was ever-changing its form.

Cheers, Viridis
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Curiouser and curiouser!