I have a newer septic and it has a filter installed that is supposed to
eliminate most of the problems, when it isn't plugged or displaced...LOL

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"David Lesher" wrote in message ...
You forgot the real enemy, grease. If it gets into the leach
field....

I would imagine phosphates would encourage more plant growth
in the leach field, eventually clogging it. I know some areas
require 2 fields and a valve so you can alternate; presumably
the one lying fallow uses up enough nitrogen to solve the issue.

Year+ agd, befire the crash, WashPost had an article on
developer-built housing out past Dulles. They could not pass
perc testing so they built sand mound septic systems instead.

New homeowners soon found out they were VERY limited
detergents, bleach, etc that the mounds could handle. They were
going into town to use a laundromat, etc.


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