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  Waterra Inertial Pumps: Low Flow System and Accessories


This pumping system is highly recommended for purging and sampling from 17 to 19mm ID piezometer tubes. The 13mm OD inertial pump tubing leaves sufficient annular space in the piezometer tubes to maintain a steady flow rate. In all but bery low yielding situtaions. It can be operated manually to approximately 30m achieving flow rates of up to 1.5 l/min.

Normal Operating Parameters
Borehole Diameters 16 to 19mm
Depth of Operation Manual: up to 30m
Powered*: 40 to 60m
Pumping Rate Up to 1.5 l/min
* using PowerPack PP1

For further technical information and applications see:
- Applications Sheet (6 sampling systems, 3 pumping methods)
- Set up and User Guide (field manual, hints & tips)
- Technical Data (physical dimensions & pumping performance)


For more details:
Manual Inertial Pumps
 or
Download as PDF



Low Flow Stainless Steel Low Profile Foot Valves and Accessories - Internal Fit
The VS stainless steel low profile, round-headed, internal-fitting inertial pump valves provide minimum hydraulic resistence and maximum pumping efficiency. Designed with cutting screw threads, they are simply and quickly attached to tubing using a Hex key (supplied separately).
Code Description
VS3-LF Low Profile Stainless Foot Valve for 10mm ID LF tubing (13mm OD)  
VS3-Key Hex Key (6mm) for attaching VS3 valves  


Low Flow HDPE Tubing and Accessories
Low Flow HDPE tubing for downhole use. Available in two coil sizes which can then be cut to lengths. Ideal for sampling from 19mm diameter piezometer pipes. Use with internal fitting VS3 foot valves.
HDPE Tubing
Code Description
LF-30 LF HDPE tubing (13mm OD x 10mm ID) x 30m coil  
LF-60 LF HDPE tubing (13mm OD x 10mm ID) x 60m coil  


Low Flow PVC Discharge Tubing
Disposable PVC tubing for controlling surface discharge of purge water. Push fits over the end of Waterra Low Flow tubing.
STX Tubing
Code Description
LFX-1 LF PVC surface extension tubing (18mmOD) - price per metre  


Tubing Cutter with Teflon Blade
The Waterra tube cutter (WTC-1) is faster and safer to use than a hacksaw or utility knife and provides straight, clean cuts to tubing with no burring.
Tubing Cutter
Code Description
WTC-1 Waterra tubing cutter  

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