The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1891-06-26

win not exceed 4-sopoo gallons in swenty-four
hours when frst put into operation, and7 10000
IN the same time four years later. representing
"A average daily work say Of s.pooooo Of gallon.
for four year,, the head under which they would
work averaging about 80 feet
Taxing the duty for high grade engines at -,
10000 foot pounds, and for the kind recon-
them with 6.D0o,nD gallons Per day for four
years, and head Of $40 feet. then the high duty
plant win use -S54 tons and the low duty plant
scs7sl tons OF coal IN that time
comparison for four years working, inelud-
ing eosis first cost and interest, stsnds Is fol-
HIGH Duty PLANT.
The high duty engines.
each OF capacity Of
p, 1870, 80 gallons Per day So so %
Interest on cost Of plant for four years
25.sss t ssl s 81 coal Al . a 49, =
Total expenditure in four years sl4s-ss5 %
Low DUTY PLANT.
Three pumping engines
eacn Of . capacity Of
Zoo gallons per day 81 800 %
Plpe., foundations and
Three srsslnf so ,f,.,,.; Vim f..a 2zo %
Interest on cost OF plant for four years
so,zsi tons Of coal AZ q !, so
Total expenditure in four years. -sl33.6l2 80
nis shows difference Of 81. o42 % in favor OF
me iow DUTY plant. with coal ~ g. 80 per ton in
greater than that paid much of the time hereto
lore, aod should the average price be less il viii
SLOW stlA more IN favor Of the low duty plant
= changs OF the price OF ccai 90 900 makes o
difference OF s., 90 between the two plants
argued that this plant should be in the
nature Of permanent one, a. 1t viii need 70 De
uwf~
nlshed. such opinions are based upon an erro-
sist OF.
| The use of Swan lake a. an impoundinz reser-
yolr removes all hazard because Of any accident
| 70 fumes or dam above the lake
,oi, ron .nsl point 70 the city the PIPE line !: 80
lows close to the top Of the ridges in all cases,
| avoiding the dangerous side hills, where Land
Ssnde edeo or Of P sss VI. S
/ Tar safer than cast iron mains, upon which reli
| ance IL placed BY many important cities OF the
country. As an additional security, the plans
contemplate one high service reservoir of % 600,
voo gallons capacity, aud the enlargement OF the
low service one 70 100000 gallons capacity,
thls furnishing storage for many days supply
These works, Ii properly built, Will be safe
a. sny gravity s1prly works in the country, and
hence saser than any pumping works. 1t viii
. wholly useless expense 70 maintain pump
/ lng wpsxs after the gravity works shall have
bcs1 pat fsc operation, And il may be said with
assursnoe thai i niA not . done for any con-
A
would soon becofne apparent
| Further study OF ysur warer-works problem
| only confirms me in the conviction thai k&s
iudicious course to pursue 10 to enlarge the
| pumping plant AZ the earliest possible date N
/ the manner herein pointed out, and 20 build the
high service gravity reservoir and the sorty-twe-
| inch supply main, from Yesler avenue 10 the
| reservoir, At about the same time If possible
This will permit Of the proper utilization of the
| two twelye-lDch Northington pumps in the
| best manner for high service work, and allow of
| the development OF the high service disfribu-
ton system in harmony with the ultimate plan.
IL should not be lost sight OF that there are two
districts too high 70 be served from the proposed
| reservoir in the city park, aud that these two
districts must always be supplied by pumping
from the city park reservoir Also that while the
| tweive-Incn MorthiDgton pumps, by the attach
| ment OF eondensers, viii easily pump for the
| scarcely be deemed sufficient to pump 70
height OF over 500 feet, which is requisite TO sup
Neither would It Be g jndeiog. to sub
ject the Rainier avenue main 20 so
severe service. The Broadway pumps, or
lished At the city park reservoir soon as p.ae-
| ticabe, that the growth Of the igh service sys-
TEN may Be started and developed along perma-
| nent lines and from permanent center. After
| these things shall have been accom- plished the
| Cedar river supply should follow with little
delay as possible Ihe more promptly and
| greater the saving 10 the city In the long run.
Because reasons have been given calculated TO
1
| Permanence that attaches 70 the pumping plant
the better 10 viii he for the city finances il must
not De thought that the sanitary considerations
attending the change of the water supply are
| unimporgant
With the growth of population on both sides
OF Lake Washington. sewerage contamination
OF the lake is inevitable. Do what will In the
| way OF diyerting the sewage of the city 10 the
| bay, there viii always be enough left 70 contain
inase me WAFER 80 as % render u uant ior pup
| ton OF the sewerage system the lake may be
| prevented from becoming offensive 10 sight and
smell, but the use OF water, subject TO pollution
by human excrement. should be avoided by all
| possible means. The testimony of all modern
| investigators OF the causes and manner OF
| spreading and propagatirg diseases is 10 the ef-
feet that il is not the quantity OF pollution but
| the quality OF the organic elements, which il
dangerous 70 health so long. Of course, as the
| smount OF pollution is n small not 10 be no
ticeable 70 the senses 1t is the spreading of dis
| eases by means OF the germs of disease con-
| tanned in human excrement which 10 to be
| guarded against, and not the mere contaInina-
ton OF the water by organic matter devoid of
| disease bacteria.
To condense the recommendations herein con-
tanned. it is not positively necessary that more
| than two of the low duty pumps and two boilers
be placed now; the third one can be left until
the necessity for il has become apparent, and
should il be found possible 10 do without il en-
| tirely until the Cedar river works are put into
operation. saving Of about $1,000 in this di-
| rection will be effected.
The estimated cost of the twenty-ineh force
| main is based upon rail delivery, but il the or
der for this pipe was placed promptly, so that it
might be shipped via the Horn. saving OF IS no
| can be effected IN this way. By doing this, sud
| putting in but two pumps and two boilers now,
| the total first cost may be reduced from 1880
| 90 S5s,490
| AS before stated. different weights OF pipe
! should be used tor the force main, according TO
the pressure 10 which IL is subjected in different
parts of the line. profile IS sent showing
these variations.
To enlarge the pumping works on this basis,
! lay the tweive-incb supply main from YesIer
! avenue TO the reservoir, and build the reservoir
| will need an expenditure about Is follows
/ Pumping plant and force main. $3.50 90
$50 feet of supply main, at s., 80 $500 Tl25o 60
/ Total - sas5 20 %
/ This does not include anything for pump
/ house distribution mains for high service dis
| trietS, or for high service pumping works al the
/ reservoirs. These things being done. an ex-
penciture OF about sI,eo000o additional will fur
| nish water from Cedar river. Respectfully sub
1 DxSrv N-rrr