Reston RELAC President Mark Waddell advised that yesterday, October 9, 2013 was the official end of the 2013 Cooling Season when RELAC turned off its chillers and pumps at 12:00 noon. Community air-conditioning chilled water will be available again in May 2014. As noted in
1974 RELAC guidance, and to avoid over-pressurizing and bursting summer cooling coils, customers should not turn off both RELAC valves when using their winter furnace heating system. Always leave the return valve open.