South Bend news-times. (South Bend, Ind.) 1913-1938, 1914-07-17
WATER PRESSURE
PROBLEM RESULTS
IN ANOTHER TEST
Supt. Toyne of Water Dept.
and Chief SibreI See What
SiameSe Twin Connections
Will Do.

Tests Of water pressure in two
outlying districts so ascertain the eff
ficiency OF the present water plant
for fire fighting purposes at the
higher attitudes OF the city, were
made by chief SibreI OF the fire de-
partment. and Supt. Toyne OF the
water department, Thursday after
noon Mayor Keller, Pres. Au-
gustine and Commissioner Hibberd, Of
the board Of safety, Arthur II. Rice
Of the board OF works. and Manager
Powell OF the Indiana fire inspection
bureau, were also present. The
newly acquired Siamese twin connec-
ton was employed
The Siamese twin connection is
made by a double connection of hose
10 a hydTant. the water from the two
being collected into a single hose for
handling. The method eliminates the
resistance in proportion 10 the dis
lance OF double and single hose en-
plOyed.
Scene of Donovan Fire.
For instance, one test was MADE
from the 5. Michigan and Donald st.
hydrant. hose being laid for a dis
lance Of 1900 feet. II was from this
hydrant with 200 feet of hose laid.
that the fire department some time
ago was unable 10 extinguish the fire
at the Donovan home on s. Michigan.
leaving the house to burn. The test
showed a static pressure Of IS pounds
at the nozzle end. but when open the
pressure reduced 10 10 pounds, pour
ing very weak stream. Only a sin
gle hose was used in this test, same
as at the fire.
Then a double hose was laid for
500 OF the 1900 feet and the Siamese
twin connection made for a single
hose the remaining 400 feet. The
pressure went from 10 pounds up to
30. and was sufficient for an ordinary
residence fire. At a distance of 800
feet 500 double and 100 single, the
pressure went up to Al. while with
a single hose the whole distance. it
went back 10 %. The static pressure
remained at about rs.
Out at Singer Plant.
From :. Michigan st. the investiga-
tors .ent to the corner of w. Division
and Olive SITS, near the Singer plant.
The hydrant static pressure there is
So. and 1000 feet away through
single hose, 10. The open pressure
With $50 feet double and $50 single
hose, the static pressure went up to
IS, and the open pressure jumped
from IS 10 46 With 450 feet of dou-
ole and only 100 feet Of single hose,
the open pressure went up 10 60. The
static pressure IS the pressure
against a dead end.
The difference in pressure between
the two points where the test was
made is accounted for by Supt. Toyne
through difference in altitude. Dom
aid and Michigan st. is SIS feet above
the foot of the standpipe. while Di-
vision and Olive st. is only SO feet.
A test was also made at the Cen
traI fire station with three other lines
OF hose laid in the vicinity. Here a
pressure of 46 pounds through a sin
gle hose of 800 feet length, was in
creased TO 60 pounds, with a distance
of 100 feet double and 100 feet sin
gle.
Docs Not Settle Question.
According 90 the officers the Gse
of the Siamese twin connections, un-
der these tests, eliminates about one
third of the single hose resistance
but as before stated. il may run
higher or lower in proportion to dis
lance and the comparative use of
single and double ines-the more Of