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  Waterra Inertial Pumps: High Flow System and Accessories

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This is our largest tubing and valve system for use where higher pumping rates are required or for the development of monitoring boreholes. The system is typically used in either 50mm or 100mm (and up to 200mm diameter) boreholes to a maximum depth of 40 metres. Manual operation is possible to approximately 10 metres, but it is easier to operate mechanically with the PowerPack PP1. If water levels are within suction depth, pumping can be carried out in conjunction with the SP1 suction pump.

Maximum flow rate (under ideal conditions) is between 10 and 15 litres per minute.

The system can also be used for cleaning and development of 50mm diameter monitoring boreholes using a Waterra Surge Block.

Normal Operating Parameters

Borehole Diameters	30 to 200mm
Depth of Operation	Manual: up to 10m Powered*: up to 40m
Pumping Rate	Up to 15 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

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High Flow Stainless Steel Low Profile Foot Valves and Accessories - Internal Fit

The "VS" range of 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
VS5-HF Low Profile Stainless Foot Valve for 21mm ID HF tubing (25mm OD)   VS5-Key Hex Key (10mm) for attaching VS5 valves

High Flow Delrin Foot Valves and Accessories - External Fit

Our original Waterra foot valves are moulded from Delrin plastic to provide a high quality plastic valve for general use. Unlike other inferior plastics, Delrin has low absorptive / desorptive properties and is ideal for routine environmental sampling programmes.

	Code Description
D-32 Foot valve: HF Delrin / External Fit / 32mm OD   WVR-1F Waterra wrench for D-25 and D-32 foot valves

High Flow HDPE Tubing and Accessories

High Flow HDPE tubing for downhole use. Available in two coil sizes which can then be cut to lengths. Ideal for dedicated applications. Use with either external (D-32) or internal fitting (VS5) foot valves.

	Code Description
HF-30 HF HDPE tubing (25mm OD x 21mm ID) x 30m coil   HF-60 HF HDPE tubing (25mm OD x 21mm ID) x 60m coil   HEC-CAPS End caps (for HF tubing)

High Flow PVC Discharge Tubing

Disposable PVC tubing for controlling surface discharge of purge water. Push fits over the end of Waterra High Flow tubing.

	Code Description
HFX-1 HF PVC 30mm OD surface extension tubing (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.

	Code Description
WTC-1 Waterra tubing cutter

High Flow Delrin Surge Blocks (48mm OD)

Delrin Surge Blocks are used in 50mm diameter boreholes to enhance borehole development and remove sediment. The combination of mechanical surging and high volume pumping can remove water containing silt and fine sand without clogging. Add water to the borehole if necessary to loosen silt. The SBHF Surge Block fits over the High Flow tubing and is held in place with a stainless steel grub screw directly above the Waterra foot valve.

	Code Description
SB-HF 48mm OD Delrin Surge Block for HF System Tubing   SB-Key 5mm Hex Key for Surge Blocks