Our waterways are becoming more and more polluted due to PFAS, plastics, medicines, drugs, and new chemicals made by companies that just hand over the responsibility of cleaning to plants paid for by public moneys. Detecting the different chemicals and filtering them out if getting harder and harder. Could the simple solution of heating up past a point where even PFAS/forever chemicals decomposes (400C for PFAS, 500C to be more sure about other stuff) be alright?
There isn’t a steel supply tap to every house is it? I don’t think I’ve had to replace or buy any steel pieces over the last two months or so. Different story with water.
Why would you need to purify the water locally at everyone’s individual house? Your logic makes me chuckle. Just wait untill you find out about a steam engine.