Not to worry Terry,
In 20 years each home will have it's own "central" utilities console that
provide wastewater treatment, AC/ heating, and water recycling. There will
be incoming electric power to supplement and water makeup. No sewer line.
If this sounds extreme.. it is .. but so is the problem with wastewater
treatment of household effluent sewage. Stuff now entering the sewers can
take years off your life.. from antibiotics to exotics mutant bacteria and
viruses.
Another way to visualize the changes coming is to add the comment.. " The
survivors" in 20 years will...
Richard