On 14/01/2018 16:35, pamela wrote:
On 08:36 14 Jan 2018, Brian Gaff wrote:

I did wonder just how humid and hot the kitchen is?.Do you have
a lot of people in the house, maybe some kind of device that
chucks out warm damp air, like a dryer with no external outlet,
maybe a small leak in a hot central heating pipe somewhere?

Other than that good ventilation and some lagging I suppose but
really unless its an industrial kitchen cooking most of the day,
it does seem a little odd to me.
Brian

If Fred's room temperature and cold water temp are the same as
everyone else's (which they probably are) then other people would
get his condensation problem on their bare pipes. But usually they
don't. As you say, it could be high humidity in his kitchen.

Depends how much pipe work (and whether it is ptfe or copper) located
inside the house and thus warmed up a few degrees before reaching the
kitchen.