Re: Scalding then cold water: who is responsible?

Thanks for your interest. The 2 large hotwater tank/systems are located downstairs outside (we repeat this for each of our 4 buildings site) and from which there are individual metres or guages or whotnot banked to the side for each lot. Electricity not gas is used. It apparently has something to do with variations in copper delivery pipe diameter from the system and when it enters the lot as affected when the units above use hot water. The system is in the basement garage, the affected unit is on the ground/podium level and units are in the 2 floors above. Cheers, C.