panying diagram and figures show the method of installing this
system, which is known generally as the Kewanee system, although a
number of other firms than the Kewanee Water Supply Co. are prepared to
furnish the outfit necessary.

[Illustration: FIG. 55.--Windmill connection with tank.]

How the air-tank may be used in connection with a hand force pump is
shown in Fig. 53. The water is pumped from a well into the tank, usually
in the cellar, whence it flows by the pressure in the tank to all parts
of the house. Figure 54 shows the tank with a gas engine and a power
pump substituted for the hand pump. Figure 55 shows the using of a
windmill in connection with the tank and also shows the relation of the
tank to the fixtures in the rest of the house.

CHAPTER IX

_PLUMBING_

A generous supply of water for a house brings with it desires for the
conveniences necessary to its enjoyment. As soon as running water is
established in a house, the kitchen sink fails conspicuously to fulfill
all requirements, and a wash-tub seems a sorry substitute for a modern
bath-room. A single pipe supplying cold water only, no matter how pure
the water or how satisfactory in the summer, does not afford the
constant convenience which an unlimited supply of both cold and hot
water offers, and the introduction of running water is usually followed
by an addition to the kitchen stove whereby running hot water may be
obtained as well as running cold water. The next step is the equipment
of a bath-room, affording suitable bathing facilities and doing away
with the out-of-door privy.

_Installation of the plumbing._

These things are reckoned as luxuries, not among the necessities of
life, and it must be understood at the outset that such conveniences
cost money, both for original installation and for maintenance; the
water-back in the stove will become filled up with lime if the water is
hard, the boiler will become corroded and have to be replaced, the
plumbing fixtures will certainly get out of repair and need attention,
and there will be, year by year, a small but continuous outlay.

Again, it is idle to propose installing plumbing fixtures unless the
house is properly heated in winter time, and this calls for a furnace
for at least a portion of the house. Usually the kitchen is kept warm
enough through the winter nights, so that running water may be put in
the kitchen without danger from frost; although the writer knows of a
ho