Deming graphic. (Deming, N.M.) 1903-1948, 1913-02-28
PUMP EFFICIENCY
WELL EXPLAINED
Why Pumping For irrigation viii
Become OF More and More
Importance in U S.
SHOULD HAVE DEFINITE PLAN
poina Things by lnStaImentS Causes
Great and Unnecessary
Expenditures

ollirrs 1T Aurora. ill.,ha- recently
rubhsh.d u bulletin entitled "Eru-
ponical Irrigation by Pumping,
which contains mach valuable mtor-
nation, aud these contemplating the
installation of n pumping plant
should url tins bookcI.
A. stated. I'm II few year, most
locations in which water can be- ub
lancd for irrigation by gravity How |
will be- taken up, but nearly every |
pan ot tn, country can be- irrigated
by well pumping.
The m-t -trp Is the well, and IN
putting duwu II well the first c"n-id
,ra,iou should be- the quality oI va
lrr ttqnir,d, ,hc depth from which
D. muH 10" raised aud th, Nld ui
mmp that vii deliver the required
..w;',t,t water "Jjh gr,#'.1 ,,".
omN. ~ iuru'.r id,a ,c.m- Do be-
lIGl thr urro'Iajr Iuug Is to reach
4 a.Nir,,at quantity of water and
u Til f, do. r'", ding mpau. tn
mr e. ,n br lgA,u uu Hl'u TIA,
.,l - roiup,l'd. Mos, persons do
ro stop To- consider that th, sink
n" al the well is only uu initial cost
white ,h" pumping expense Is con
-lanl aud au crouomical lu~lalllluu
will only be- obtained when the most
cIliric'l type of pump for the rondl-
lions B.. considered at The Time the
NcIl made.
The question of jumping water for
'r7iea'iun then becomes of vital i'm
uoWanr,. lu ATTAIN success the n
r.alpr musi take into consideration
many ih.rg- aud he must strive Tor
an efficient ,,ouumrul plant, other
WIS, h. may Iosc both HI, time aud
MONEY.
Tue m"-i desirable type rf pump
'or a,r m.,aIIaliou, "f course, de
p,rd- ou the quantity ui water r,-
uliryd. ~ Il would ohyiou>ly be- poor
economy H. mos, locations to install
M .Np, ,''r pumping plant for ml--
... 'g" amount of water 1t
@a,d hc born iu mind, however that
~ irrigation here Is les, ~ropagr los
by applylr" % large quantity of water
Quickly lhnu iu nllowiug the same
auod.l ui water tn tloW ON The land
IN iuug,, period of time 81 that the
'rcat,r ,c-t At u pnmpug plant oi
ample 'grar.ty il often the cheaper
installation by hciug required Ia
prmp less water and operated for II
ho"tcr period.
The Improvement in the design al
lampiug ma rhintry has been 81 rapid
during the last few year, that few
r,alizc the possibilities, of some of the
later types uf pumps. The greatest
achievement n the development ol
pumps has been the substitution of
design. oi r,ry compact form, WITH
lrN parts lo gel oul ut order. Tor tn,
.rcat cumbersome machines which
"n'y i few years ago. were run~ld
red necessary 10 deliver II larry,
quantity of water economically. Thl'
j. Has been accomplished principally by
the application aud development ot
centrifugal force ~ u means of ial~
ng water.
The centrifugal pump i, primarl,
circular easing with the inlet %
nrl'on at the center aud the dis
charge at one side or at II langcn
with the perimctcr. Inside the cas
ils l. the impcller on runner. whicl
'f keyed onto the main shaft an,
rotnlcs with il. The impcllcr ron
lists of several curved arms or vnne
Usually -four to six. which may b
other closed at the sides or open. TIL
open type l. closely adjusted nj til
Sid Ia the easing - that when wa
Ter Is thrown forward by ccntnfu
gaI motion there will be al least leak
'ge by the sides Of the impellcr bac
To the suction pipe. The enclose
'mpcllcr type has large clearance {
me sides. bLt is closely fitted aroun
'ne suction opening To prevent leak
He.
The general construction of Il
centrifugal pump is 50 simple th'
'ew realize that ils highest dcveloI
"'en' requires great mechanical SKI
""o accurate adjustment, This
"e'ause il must be- operated at hil
need and any inaccuracy of flo
"les or adjustments will reduce d
enic'eacy Of the pump. Among Il
most important features which Il