Mrs Rebel wants us to get a rainwater tank, as she reads how things like the meat works can be closed by hackers and ransomware etc,,, The fact the governments of the world will be doing a simulation exercise later this year (or so she tells me) then the likely hood of it happening is 100%, just as the covid rehearsal, then we had the pandemic, they are rehearsing no water etc .. So never had a rainwater tank, we live in Suburbia, she wants a slimline one for out the back, as I said 1 is not going out the front garden i am thinking 3 or 4000 litre tank.. They are about $2k plus then instalation.. Anyone else have a rainwater tank, and do they require lots of maintenance?