There you go andreic! That's the reason why a lot of hot water tastes a bit funny and is a bit of a no no for brewing though it's good to hear that bugwan's vision is still ok :blink: Good on you MHB (and thanks for the mains explanation too.)
Ha ha! Just taking the pee Pat.. I actually wasn't aware that hot water systems were in any way dangerous, I always thought that was an out-dated notion from when hot water piping corroded more easily in the past. As always, I've learnt something on AHB! The sacrifice anode makes sense, let's hope it doesn't affect my beer (or my vision)....!
As my brewing is going to start earlier this year, I'll be heating cold water, so it won't be an issue.
I wonder if you've started something Pat - maybe every brewrig in the future will have an inline water heater installed...food for thought (at the right price )