John,
Thanks for the quick reply. The very large tank in the loft is full and the water is just below the overflow hole. I assume that is what you are talking about.
There is a very small tank nearby, situated between the rafters. I have been unable to check that one due to disabilty problems (knees !).
But, I wonder, is the loud banging in the attic and the lack of cold water from the bath tap connected?
Cheers
Bob
Bob
May 2009