".." wrote in message
...

"Crag" wrote in message
...
The pipes in the loft are knocking so much that it wakes me in the
morning
(when the heathing/water come on).

Is this 'water hammer'?

What's the best solution to this?
Trace where the noise is loudest and secure the pie that's loose.

Beware of securing long runs of heating pipe. The expansion/contraction can
create infurriating noise as the pipe periodically 'jolts' through the
fixing.
Like to know the best compromise for this myself, the previous owner thought
that strategically placed socks were the answer.

--
Mike W