TESTS OF DRAINAGE PUMPING PLANTS. 
31 
of the fuel oil used was obtained by measuring the change in elevation 
of the oil in the storage tank. When the test was finished the pump 
was opened and about a bushel of grass and weeds was taken out. 
This debris, which must have been accumulated gradually, was 
nearly equalh r distributed on the two sides. There were defects 
in the screen, especially at the ends, but these were soon remedied 
and it is probable that most of the vegetation came through the 
screen itself in small pieces. It is certain that the filling up of the 
pump decreased the capacity and efficiency of the pump. Table 22 
gives in detail the results of the test. 
Table 22. — Test of pumping plant, subdistrict No. 1, Lafourche drainage district No. IS , 
Fay port, La., I 
vov. 24, - 
1916. 1 
Time. 
Speed. 
Actual 
lift. 
Discharge. 
Useful 
water 
horse- 
power. 
10.45 
E. p. m. 
169 
168 
169 
170 
170 
182 
181 
182 
182 
181 
181 
183 
Feet. 
. 1.94 
2.26 
2.42 
2.59 
2.73 
2.97 
3.10 
3.25 
3.46 
3.57 
3.77 
3.87 
Sec.-ft. J G. p. m. 
35.66 16,000 
33.84 15,200 
30.40 13.630 
7.86 
11 .15 
8.70 
11.45 
8.35 
12.15 
30.26 
13, 590 
8.90 
12.45 
1.15 , 
28.60 
31.82 
29.10 
29.30 
28.18 
26.98 
24.90 
12,830 
14,300 
13, 060 
13, 140 
12, 620 
12, 100 
11. 170 
8.87 
10.72 
1.45 
10.22 
2.15 
10.81 
2.45 
11.13 
3.15 : 
3.45 
10.93 
10.66 
4.15 
25.34 11,370 
11.12 
Average 
176.5 
2.99 
29.53 
13, 250 
10.02 
1 Oil used, 244 pounds. 
TEST OF DRAINAGE PUMPING PLANT IN DALCOUR DRAINAGE DISTRICT, DALCOUR, LA. 
DESCRIPTION OF PLANT. 
This pumping plant installed in 1913 at Dalcour, La., about 22 
miles below New Orleans, drains 650 acres of land. A 35-horsepower 
distillate engine is used to drive a 24-inch centrifugal drainage pump. 
A friction clutch is used to connect engine and pump. A priming 
pump is run from a jack shaft which in turn is belted to the engine. 
The fuel used in the acceptance test was distillate of 45° Baume at 
86° F., which reduced to 60° F. was equivalent to 42° Baume, 
weighing 6.8 pounds per gallon. The manufacturer's guarantee was 
that the plant would consume not more than 3.56 gallons of kerosene 
or No. 2 Solar oil per hour with pump operating at a capacity" of 
9,250 gallons per minute and a difference in water level of 5.5 feet. 
It was impossible to continue the test long enough to pump the water 
down to a 5.5-foot lift, but it was agreed that the results obtained at 
the 5-foot lift would govern if satisfactory. Table 23 gives the 
results obtained during the test. 
