I am Facilities Mgr. of an school in a 90 year old building...it once was a hotel.
Recently we are getting hot water coming out of the cold water tap in various parts of the building...it starts really hot...within a minute or two it starts to cool off...
very strange...so far as I know nobody has fooled with any valves or faucets... it seems to happen any time of day.
any body got any ideas?