Groundwater Sampling Devices
9
Figure 4. PneumoBailer.
PneumoBailer
The PneumoBailer was designed specifically for recovering samples from
deeper wells (1001000 ft). The sampler has a stainless steel chamber with a
Viton reed valve and two O-rings and a polyethylene floating check ball (Fig. 4).
This device is connected to the surface with an LDPE gas-supply line and utilizes
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