On Sun, 29 Jan 2006 01:40:53 +0000, Grimly Curmudgeon wrote:

However the problem did turn out to be a monobloc mixer tap. It must
have a flaw in the casting because cold water was getting through to the
HW side with both hot and cold taps turned hard off (and washers and
seats in good condition). Actually you could hear the water hushing
through when you were close to the tap. Up in the storage tank you could
see a little sort of plume of turbulence in the water where warm water
was getting pushed back into the tank and mixing with the colder water.

Wasn't French, was it?

'Heritage'