>consult guide about Santraginean mineral water
The Guide checks through its Sub-Etha-Net database and eventually comes up
with the following entry:
A strong body of opinion holds that this is not water at all, despite the
claims on the label about how pure the spring is, and all that tosh about
sparkling babbling brooks and so on. There is something highly suspect
about the water on Santraginus Five, as anyone who's ever met any of their
fish will tell you.
-- The Hitch Hiker's Guide to the Galaxy