In article ,
John Stumbles writes:
On Thu, 03 Apr 2008 14:54:35 -0700, ac1951 wrote:

Anyone got any ideas on how I can free up a 3 position valve on a
shower unit locked with limescale.

Er, descale it?

If it's over an enameled steel bath, be careful to keep the
descaler off the enamel as it will destroy the polished surface.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]