A necessity in every dwelling is effective disposal of the kitchen-sink
slops. This necessity ordinarily arises long before the farm home is
supplied with water under pressure and the conveniences that go with it.
Hence the first call for information on sewage disposal is likely to
relate merely to sink drainage. This waste water though it may not be
as dangerous to health as sewage containing human excrements is still a
menace to the farm well and capable of creating disagreeable odor.
The usual method of disposing of sink slops is to allow them to dribble
on or beneath the surface of the ground close to the house. Such drainage
should be taken in a water-tight carrier at least 100 feet downhill from
the well and discharged below the surface of the ground. Every sink should
be provided with a suitable screen to keep all large particles out of the
waste pipe. An approved form of sink strainer consists of a brass plate
bolted in position over the outlet and having at least 37 perforations not
larger than one-fourth inch in diameter. Provided a sink is thus equipped
and is given proper care and the land has fair slope and drainage,
the waste water may be conducted away through a water-tight sewer and
distributed in the soil by means of a short blind drain. The blind drain
may be conveniently made of drain tile in the manner shown in figure 17.
A simple installation, consisting of a kitchen sink and pump and means of
disposal as described, is shown in figure 18.