4:47 PM 02/05/2013
Our building just had a new hot water heater installed, and in the manual that came with the heater, it says the tank should be drained and flushed every 6 months. To my knowledge, we've never drained and flushed at all before. How important is it to do this? And is 6 months too often?
It also says that the anode rod should be inspected annually, and the temperature pressure-relief valve should also be operated annually? Are these necessary as well?