Finally got round to looking at why we're getting a slight dribble of
an overflow from the cold tanks in the loft.
(It tends to only be noticeable last thing at night when I put the
dogs 'out' - so by the following morning it's long forgotten -
been like that for a few months !)
Anyway - just seeking a 'reality check' from you good people...
please take a quick look at
gives a photo of the installation and describes the problem.
I guess a really slow leak on the c/h header tank ball valve is the
most likely culprit...... but it 'seemed' to be sealing OK when I had
a quick look yesterday.
More puzzling (to me!) is the strange arrangement with the 'hairpin'
overflow pipe - don't quite see what this pipe achieves that the other
connection to the base of the c/h header tank doesn't ?
FWIW - the heating system 'downstream' of this is run from a
ground-source heatpump - with two circulating pumps for dhw and c/h.
Thanks in advance for any comments
- posted 12 years ago