What’s prompted her awareness is more about her attitude that water is a precious commodity rather than necessarily heating it as we’re on a borehole. What’s prompted that change in attitude is a neighbour down the hill from us has lost her water supply due to Iron Oxidising bacteria problem with her water source. She was about to sell her house which she obviously can’t until this is resolved and even then it might be difficult.
But, yes I get the ‘stop going on’ reply too. 😂