The Idaho recorder. [volume] (Salmon City, Idaho) 1886-1927, 1920-01-23

pump cannot be placed SO that the limiting
SUCTION TIT viii not be exceeded II is necessary
% lower the pump cylinder into the we'll raising |
me water from the cylinder 10 the spout by the
hrect iift OF the piston. Water can be pushed
more easily than IL can be pulled. hence, rather /
man resort to extreme suction lifts II is prefer
able to lower the cylinder 10 within 10 feet or |
less OF the supply. or still better submerge II
Where water Is discharged against pressure a
force pump is necessary. A practical insiaIia- |
ton for the kitchen sink Is a combined suction
ana force pump which viii be found u great "a |
Dor saver for the housewife
Deep.Weli Pumps
Decp-well pumps are heavier and stronger Than |
those described above. They may be of the lIft or
force type and the standard or working head Is
always directly over the we'll The cylinder
should be near twithin Is feeU or else helaw
water level which pumping and drought mny ere.
ate. suhmergence IL the preferable arrange
ment. In all installations the size OF the pump
ing cylinder must be determined from the size
cepth, aud yielding power of the well the auan
tity Of water required. aud the available power
Deep wells and hand or WINDMILL outfits tnk.
small cylinders
Pumping by means OF compressed mir IL very
old. but the systems used prior TO 1909 required
the air supply to be turned on or shut or accord
Ink to whether or not the wnter was needed
Based on patent granted In that year n two.
cylinder airdispiacement pump submerged In the
water supply and controlled by the opening and
closing OF the faucet. was devised. The essen
! n. parts of installation. besides such a rump
ARE an mir compressor storage tank. engine or mo.
'nr--with air and water pipes. and minor attach
ments. The pump operates only when water IS
used, starting whenever faucet In opened and
continuing until all faucets nre closed.
The chief advantage of air-dispncement pumps
is thar water may be taken from ordinary dalah
or lateral distance. or from severi sources with
one power outfit AMI delivered direct from the
well TO the faucet. The power plant may he
located wherever convenient and as mnny pn,nps
may lie used ns there nre sources Of water. B,th
hard and soft wafer may be delivered by using
two pumps and the necessary piping systems.
Af-displncement pumps nre not adapted NJ pres
ent "a lifts much i25 feet or TO wells 'css
than three inches In diameter. nor can they be
used where water IN required than the
we'll can supply within specified period. Air
pipes and air-displaccment pumps must be tIsht
and rennln tight in service and working parts
must he kept In good order.
Horsepower Needed.
Water may he raised by hand windmill hy-
dr;,ulic rams steam, hot air gas Internal com.
hustion engines. or electric motors Hand power
Is unsuIted to large supplies high lifts. Wind.
mills are probably the most familiar type OF me.
chnnical power used. and often are arranged io
start and stop automatically. Gasoline and oil
engines are well adapted 10 farm pumping AMI
may be equipped TO stop nj amy desired pressure
In supply tank. The use of electricity fer
pumping ls increasing The method In clear.
quiet. and convenient, and starting stopping n
distant pump 10y throwing o switch may be- pr8r.
teal wherever transmission lines sufficiently
The theoretical horsepower needed TO raise
winter II found by multiplying the gallons pumped
IN minute by the total lift. In feet. includ m
friction In both suction and discharge pipes. and
then dividing the product by 1000. The bDrse-
power. computed. should he multiplied by from
two four 10 overcome losses In pumping and
still allow for reserve of power Ordinarily
one to two horsepower engines are suficien. Tor
farm pumps. hut II Is always safest to determine
this point by computation,
An advantage IN be- derived from the weiiip.
stalled farm water system often overlooked II n"
benefit II affords In the way OF fire prevention
With relatively small expenditure. fixtures cap be
added to a pipe system. which give ready sce~ss
TO the water supply for fighting flames. In al
most every u fire can he easily put out II
discovered at its early stage. providing there =
fre-fghting apparatus near by and all hams
even the children. are taught and drilled 10 n's
such apparatus cooily and skiiifully