[masraum]

Originally Posted by rwest

I stand corrected on running the temp up, but I still have to wonder how common it is to get a bacterial disease from your household water supply that gets daily use.

Have to think it is pretty rare or we would have heard a lot more about it over the years.

Right. Seems pretty unlikely to me.

I also had a plumber tell me years ago, that once a year you should flush your water heater, but before that you should pour a cup of bleach into it and let it sit for a while before the flush to ensure that you killed anything inside. I've never done that, but that's what he said. At the time I didn't really think about it at all, but while there is some bacteria that grows in hot water, I think that's pretty specialized and unlikely to end up in water heaters unless you drop them down to thermal vents in the ocean.