Double Valve eco Bailer Groundwater Interval Sampler
Double Valve Clear eco Bailer: Groundwater Interval Sampler
Double valved eco Bailers are designed to drop down the water column in a monitoring well allowing water to pass through. At the designated depth, the bailer’s downward descent is stopped and the bailer is then smoothly recovered to surface. But because there is both an upper valve and a lower valve, the water trapped between the valves is water from the interval in which the descent of the bailer was stopped. The valves prevent the “trapped” water from mixing with other water on the way out of the well.
All bailers are PFAS, PFOS & PFOA free.
Adapts to Disposable Filters
All Clear PVC eco Bailers are easily adapted to the Waterra 0.45 micron Groundwater Filters for collection of samples for metals analysis directly from the bailer.
A short length of 1/4″ OD or 1/2” OD LDPE tubing along with the Bottom Emptying Spout can be used to easily connect a Waterra Groundwater Filter to the bailer. This allows the bailed sample to flow by gravity directly through the filter and into a sample container. In many cases a 1 litre sample can be filtered in under 2 minutes using this method.
Waterra Words of Wisdom
The Clear PVC eco Bailer for sampling groundwater is as heavy (or heavier) than conventional weighted bailers without the addition of bulky and costly weights. A better weight distribution allows the Clear PVC eco Bailer to sink straighter and the efficient valve design makes it the fastest sinking bailer available.
- available in 3 lengths: 1,3 and 4 feet
- faster sinking than polyethylene bailers
- clear tube allows sample inspection within the bailer
- connects directly to inline filters for easy filtration, no pressurization needed
- requires less material to produce, resulting in less waste and cost to the environment
- PVC ball with no leakage
- PFAS, PFOS & PFOA free
eco Bailers are made of clear virgin PVC with a density of 1.31 grams per cubic centimeter versus polyethylene, which has a specific gravity of 0.96 to 0.98.
Since PVC is also transparent (whereas polyethylene is translucent), when you use Clear PVC eco Bailers you can inspect your sample while it’s still in the bailer.
Clear PVC Double Valve eco Bailers
| 1.5 inch (38mm) OD | 1.5 inch (38mm) OD | 1.5 inch (38mm) OD |
|---|---|---|
| • 1 foot (25cm) • 345 ml • 24 per case | • 3 feet (76cm) • 1025 ml • 24 per case | • 4 feet (102cm) • 1365 ml • 24 per case |
Waterra 0.45 Micron Groundwater Filter
