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Frequently Asked Questions
Explore our Frequently Asked Questions (FAQs) to gain insights into our diverse range of offerings. From Soil & Sediment Sampling to Water Monitoring, Telemetry Systems, and Equipment Rentals, find detailed…
Low Flow Sampling using Advanced Peristaltic Pump Video
…ideal for low flow sampling sequences is available to rent or buy. This video shows how it can be used with Inline Filters for low flow sampling in the field….
How-to-Video: Using Flow Cells for groundwater sampling
How to get the best, most accurate results when low flow groundwater sampling using a Flow cell
Stream Flow and Water Quality Monitoring meets Gold Mining in Central Otago
…the program is flow and basic water quality in the local creeks. For this we supplied appropriately sized RBC type flumes. We have the flumes made locally by a talented…
Servicing and Repairs. Equipment Services
Van Walt’s qualified engineers can inspect, service and repair your environmental equipment in our dedicated repairs workshop. We will perform an initial inspection and carry out any maintenance or repairs…
Geosub Sampling Pump Basic Operation Video
Introducing the SS GeoSub. A stainless steel submersible impeller pump capable of high and low flow sampling and lifting water froma up to 45m below ground level.
Groundwater Sampling
…flow rate and the volume of suspended sediments is unknown – we have the right groundwater pump, groundwater sampler, hall marked filter or groundwater sampling tubing and monitoring well pipe…
Window Sampling Demonstration
The Van Walt percussion Window Sampling System is a powerful, non-destructive, low disturbance site investigation tool.
Gas Powered Sampling
Agricultural & Environmental Soil Sampling: Our Gas Powered Core Sampling Kit with the Gas Powered REDI Boss Hammer is ideal for obtaining soil core samples up to a depth of…