On Fri, 5 Nov 2004 07:47:45 -0700, "Charles Spitzer"
wrote:

bartenders friend is oxalic acid crystals. it acts as a buffing compound
because of the crystalline shape, but isn't really. it will dissolve in
water. the acidic water will then dissolve the calcium/mineral deposits.

Aha! Thanks for the enlightenment!

--JWW