should empty
into an open sink where it can be seen. There is a possibility of
the drainer valve leaking and then the water pressure will leak
through it, causing a waste of water. If this leakage can be seen
where it discharges, then the trouble can be rectified. The cellar
drainer is connected directly with the water pressure and should
have a valve close to the connection to control the supply.

CHAPTER IX

STORM AND SANITARY DRAINAGE WITH SEWAGE DISPOSAL IN VIEW

The accompanying drawing of storm and sanitary drains should be
studied in detail by the reader. The location of each trap and
fitting should be studied carefully and the reason that it is put
in that particular place should be thoroughly understood. Below,
each plan has been taken and gone over in detail, bringing out the
reasons for fittings and traps, also the arrangement of the piping.

[Illustration: FIG. 46.]

The first thing to note in Fig. 46 is the number and kinds of
fixtures to be drained. There is in the basement a set of
three-part wash trays. This will require a 2-inch waste and a
1-1/2-inch vent. There is in the drawing a 2-inch waste extending
to the fixtures above. On the same line is a rain leader with a
trap showing also a 4-inch floor drain. There are two 4-inch rain
leaders on the opposite corners of the plan, in the rear of the
building. There is a 4-inch soil stack for fixtures above and a
4-inch soil stack in the basement on the same line for a basement
toilet. On the front there are rain leaders in each corner. These
will be connected outside of the house trap (this feature should be
noted). The outlets that are to discharge into the house drain are
as follows:

Two 4-inch rain leaders.

One 2-inch sink waste.

One 2-inch wash tray waste.

One 4-inch floor drain.

One 4-inch soil pipe.

One 4-inch closet connection.

Two 4-inch front rain leaders to discharge into house
sewer.

If we were to install this job, we would first locate each pipe
that enters the house drain. The lowest outlet would be
particularly noted, in this case the 4-inch floor drain. From this
drain we must make sure that at least 1/4 inch to the foot fall is
secured. We must then locate the house sewer where it enters the
foundation wall, then the work can be started. I will not attempt
to list the material that is necessary for this work, at this time.
With all the material at hand the house dra