Discovered yet another casualty of the FW shock treatment. My hot water tank
thermostat. Stays "on" all the time and heats the water to scalding. Dealing
with it temporarily by shutting off the HW tank at the AC distribution panel
after a couple of hours....could be just a coincidence, or could be that I used
a lot more bleach than Peggie recommends and discovered a couple of weak spots
as a result.