Geotech Bladder Pumps, Инструкция по установке и эксплуатации, Страница: 9 / 32

7
Safety Cable
Before deploying any sampling pump, secure a safety cable from an anchoring point at or
near the well head to the top of the pump.
The optional Bladder Pump Hanger is attached to the Quick Link on the safety cable.
Carefully lower the Bladder Pump into the well using the Reverse Coil Method to avoid
kinking, until the desired depth is achieved or until the well cap seats.
Reverse Coil Method
When lowering the pump into the well it is important to reverse the natural bend of the
coiled tubing so that the tubing will straighten out as it is lowered (see figure 4). As the
pump and tubing are lowered into the well, the direction of the bend should be reversed
from the direction in which it is coiled. If the tubing is allowed to uncoil naturally and the
natural bend not interrupted, the tubing will continue its coil into the well. Using the reverse
coil method will avoid hang-ups or difficulty in lowering the pump into the well, especially
when the well is not completely vertical, or has come out of alignment for any reason.
Optional Drop Tube Assembly
If a Drop Tube Intake assembly is employed, a third tubing line is necessary to connect
from the bottom of the bladder pump to the top of the Drop Tube.
For deployment of optional Drop Tube Assembly attach desired length of drop tube to the
intake hose barb and hose barb on bottom of pump. Send the drop tube intake down the
well followed by the drop tube tubing, then the pump and finally the air and fluid discharge
lines.
Figure 4
– Reverse Coil Method