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Example flow rates:
Pump Size:
1.66 x 36"
(4 x 91 cm)
1.66 x 18"
(4 x 46 cm)
0.85 x 18"
(2.2 x 46 cm)
0.675 x 18"
(1.7 x 46 cm)
Pump Size:
1.66 x 36"
(4 x 91 cm)
1.66 x 18"
(4 x 46 cm)
0.85 x 18"
(2.2 x 46 cm)
0.675 x 18"
(1.7 x 46 cm)
* Airline tubing size: .17"ID x ¼" OD (4 x 6 mm)
Flow rates are based on 3' (0.9m) of pump submergence. Typically,
field environments will provide greater submergence (10 ft. + (3 m)),
which will increase flow.
Speak with a Geotech representative to determine the best configuration to fulfill your
sampling needs.
Table 3-1: Flow Rates with a 25' (7.6m) Airline
@ 25 ft. (7.6 m) airline*
(3 ft. (0.9 m) submergence)
Discharge Tube
Size:
1/4" ID x 3/8" OD
(64 x 127 mm)
.17" ID x 1/4" OD
(43 x 64 mm)
Table 3-2: Flow rates with a 150' (46m) Airline
@ 150 ft. (46 m) airline*
(3 ft. (0.9 m) submergence)
Discharge Tube
Size:
1/4" ID x 3/8" OD
(64 x 127 mm)
.17" ID x 1/4" OD
(43 x 64 mm)
Approx. Geocontrol PRO Settings
Flow:
Fill Time:
43 oz/min
10 sec.
(1.3 L/min)
33 oz/min
5 sec.
(1 L/min)
20 oz/min
1 sec.
(0.6 L/min)
10 oz/min
1 sec.
(0.3 L/min)
Approx. Geocontrol PRO Settings
Flow:
Fill Time:
9 oz/min
(260
20 sec.
mL/min)
6 oz/min
(175
15 sec.
mL/min)
2 oz/min
(59
8 sec.
mL/min)
1 oz/min
(27
5 sec.
mL/min)
9
Discharge Time:
7 sec.
5 sec.
2 sec.
2 sec.
Discharge Time:
55 sec.
40 sec.
30 sec.
25 sec.
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