Now that the weather is warming up, I'm considering replacing our HW
storage tank (it's about 30 years old, and is getting a bit crusty
around some of the pipe connectors). Before I do, I suppose I ought to
ask if (in everyone's opinion) I should just replace it like-for-like?
Or is there some other direction I ought to be heading in, like
mains-pressure hot water, or just using instant hot-water taps
everywhere instead? Or something else?