Hi seascape and welcome to The Plumbing Page at AskMeHelpDesk.com You are responding to a 2 year old dead thread Please check the date before you post. Thanks,
I'm going to turn the heater on high and flush the hot water it through kitchen and bathroom sink and shower
That's NOT how tow to flush your heater,
For long life and fewer troubles you should keep your heater clear of mineral build-up by
FLUSHING NOT DRAINING on a regular schedule.
Attach a hose to the boiler drain at the bottom of the tank.
With the pressure on, open the boiler drain and let it run until the water runs clear. You will see a spurt of red,(rust) followed by white or yellow grains,(lime or calcium carbonate). This shouldn't take more then a few minutes.
Do this monthly to keep it clear. Now flush out your hot water lines on ALL fixtures that are affected . Now pull each aerator and clean the screens. Be sure you put them back together the same way you took them out. Don't forget to flush it out every month. Your heater will thank you for it.
Also think about replacing the heater anode rod. Let me know if it solved your problem. Good luck, Tom