The Pacific commercial advertiser. [volume] (Honolulu, Hawaiian Islands) 1885-1921, 1896-12-17

of piping for the eight filters they have
agreed to furnish.
No. 10 shows top view Of same.
No. II shows cross section of the
building and situation of the filters,
etc.
No. u shows side and top view Of one
of their filters, showing general con-
struction of the same.
In New York / met Mr.. G. r. Davis,
who is connected with the Morrison
Jewell Filtration Company, and I en-
close their bid for the same quantity
of water and same time.
Their contract calls for S16,325, f. o.
b. in New York, with cost of freight
insurance from there to Honolulu to
be assumed by the Board and in adj
dition the cost of an expert at 5000 a
month.
In connection with this bid you will
find in an envelope marked ''X' the
following:
No. l letter from the company to me.
No. 2 letter from the company to me.
No. 3, list of city filter plants.
No. 4, bacteriOlOgic results from me
chanicaI filtration.
No. ). extracts on filtration of water.
No. s. the Jewell mechanical water
filter
No. Z. results obtained with expert
mental filters at Pettaconsett Pumping
Station at Providence, r. I.
No. 8, one whole screen.
No. 9, one section.
No 10, sample quartz; 90 fine and
coarse.
No. II, sample sand.
No. II, list of filters used.
No. 13, contract No. 1. In duplicate.
No. IA, contract No. 2. In duplicate.
No. -. section of filter, showing con-
struction.
No. IS, directions for renovating and
steriIizing the filter beds of the Jew
ellflter.
No. II. catalogue.
No. IS. plan showing cross section
of the building; side view of the eight
filters: also top section.
This firm furnish their own tanks,
and the Board would only have to fur
nish foundation and cost of salary of
expert to set up same.
1t takes 100 tons of quartz TO do the
work needed for 100000 gallons of
water, or for eight tanks. The quartz
used comes mostly from Wisconsin,
and costs $40 a ton there.
It takes 20 pounds of alum to purify
100000 gallons of water and costs
SI.75 per 100 pounds.
During my visit East / visited the
filtration pond at Lawrence, Mass, and
was entertained by the Mayor and Mr.
A H. Salisbury, the Superintendent of
the Lawrence Water Board. The lat
ter gave me the 18th, 10Th and Goth an
nual report of the Lawrence Water
Board, which are enclosed, and wherein
can be found a very elaborate account
of their filter pond, as we'll as their
system in general. Their filter pond
covers an area of about two and half
acres; it is expected to purify 100000
gallons per day and remove SO per cent
of all bacteria.
In the Lawrence Water Board report
for the year 1894 will be found pic
lures and diagrams of their power
house that raises the water from the
river and also forces the filtered water
ND into the reservoir that supplies the
city with water.
After seeing both methods for filtra-
ton, it is my opinion that the me-
chanical filters would do what was
wanted here at much less cost original
~ and for running same than the
reservoir method.
If there is fall enough between the /
ELECTRIC LlSnJ OJdIlOn anu TIC CiIE |
main, gravity filters could be located |
there at small cost, and the filtered |
water could be run from the filters to
one of the lower reservoirs, and from |
there to the city proper, but the reser- |
voir that received the filtered water |
should be covered over, so as to keep
out all dust, leaves and impurities.
The use of alum as cOagulant is
not general for cities or towns, but is
used in small filters for houses and no
tells. where they want to make per-
fectly white water.
l shall send samples of the different
kinds of sand that can be found on
the Islands to each of the abOve-named
firms. and if they decide that it can be
used. it will lessen the cost of run
ming the filters very materially.
| remain, sir, your obedient servant,
G. A. BROWN.
Member of the Board of Health.
The Board decided to refer the re-
port to a committee of the physicians
of the Board to meet in conference with
Mr. Brown at some near date.
At 4:1O D. m. the Board adjourned.