I am well baffled here, I came home from a few days away on Friday, my wife ran the bath and it was fine but ever since we have no cold water at all to the upstairs of the house, not to the toilets or any of the taps. The shower still has cold water though so it must have a separate feed. Everything is fine downstairs. I've checked all the pipes and all valves are open and the tank in the attic is full. Anyone got any clues?????
Thanks.