The main purpose of home-sewerage works is to get rid of sewage in such
way as (1) to guard against the transmission of disease germs through
drinking water, flies, or other means; (2) to avoid creating nuisance.
What is the best method and what the best outfit are questions not to be
answered offhand from afar. A treatment that is a success in one location
may be a failure in another. In every instance decision should be based
upon field data and full knowledge of the local needs and conditions.
An installation planned from assumed conditions may work harm. The
householder may be misled as to the purification and rely on a protection
that is not real. He may anticipate little or no odor and find a nuisance
has been created.