"Andy Hall" wrote in message
...
On Sat, 25 Oct 2003 20:01:56 GMT, "BigWallop"
wrote:





Or it could be a leak from the coil in the HW tank.



True, although generally those seem to start as small seeping with the
FE tank filling slowly and water through its overflow.........


.andy


That's the bit that's getting to me too. That's why I first thought of an
over heating problem, but turning the cylinder 'stat down didn't seem to
help. Others have also brought up an over speed on the pump, but adjusting
this also didn't help. Now it's just still a mystery. :-))