A bit about rainwater tanks
Isn't there an issue with metalic resadues coming off the roof with tank water?
I thought sometimes lead can leach into the water, and paint residues.
Mind you I have never heard of anyone dying from tank water.
There are add on water purifiers for about $200 or so that go on the end of your tap which are good I gather.
Generally I have read that bottled water is WORSE than tap water, there was one local barnd that was actually Auckland tap water :)
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