The new Geosub 2 Pump & Controller is unique with no comparable competitors for groundwater monitoring. It is suitable for low flow sampling or high flow purging and it can pump down to 60 m head lift of water. A Drop Tube Assembly is also available to position the intake deeper into the well. Available for sale & to rent.
Find out more ....
The Requirement: Within the Smart Bog Project which seeks to understand global carbon stocks and their effect on global carbon emission levels, a need to understand water flow within a peat bog was identified. Water flow data needed to be imported into a model to help determine the driver environmental variables which shape the carbon cycle of a peatland ecosphere and model the effect on the surrounding environment.
Solution: The deployment of RBC flumes with high accuracy water level sensors connected to a vanwaltDATAHUB. For the automatic monitoring of water flow the flume works with a datalogger when you add a sensor in a stilling well. Different size flumes are available dependant on your expected flow, these range from 0.1 - 8.7 litre/sec to 2-145 litre/sec. We recommended a vented system which consists of a high accuracy Keller sensor, this is a small range sensor which barometrically self-compensates for improved accuracy.
The Requirement: To report on a range of meteo and environmental parameters including water level; water quality and water flow to ensure compliance with the regional regulator when it comes to water extraction and the impact of site activities (a ski resort) further down the mountain and along the natural river courses.
Solution: The deployment of a powerful and extensive telemetry system comprising of different sensors for different environmental parameters, attached to a variety of vanwaltDATASLAVEs, each talking to strategically placed vanwaltDATAHUBs to ensure complete coverage of a large geographical area, in a cost effective and efficient way. The system needed to be robust to deal with extremes of weather and deal with mountainous conditions which sometimes meant poor lines of site. Data needed to be uploaded regularly and is used to monitor the switching of additional equipment at the site, artificial snow machines, as well as ensuring compliance with the regulator.
The Requirement: To have environmental and meteorological data in order to monitor the impact of extraction and maintaining a sustainable water supply, and what that means for the health and ecology of an area.
The Solution: The installation and commissioning of Van Walt’s environmental Data Collection equipment to measure water level, EC and meteorological data (ambient temperature, precipitation, relative humidity, evaporation) in 41 different locations across a 5000-acre site. For the most effective and cost-effective solution just three DataHubs were positioned to collect the data by radio frequency from 38 DataSlaves sited around the landscape. Van Walt provided full installation, including drilling and the erection of protective fencing around the equipment. Now valuable data is streaming in, every 30 minutes to all the stakeholders in this project.
The Requirement: To implement a paradigm change in groundwater management in the Mediterranean by predicting the availability and demand for water resources as well as their impact on the sustainability of groundwater bodies. The initiative, part of the European PRIMA programme, is being carried out in western Almería (Spain) and will eventually be replicated in Jordan and Lebanon. The group of stakeholders involved, plan to develop and validate a digital tool that allows efficient management of groundwater in terms of quantity and quality of this strategic resource.
The Solution: Good data always starts with a reliable, accurate sensor. Van Walt installed and commissioned a Data Collection system comprising of a mixture of DataHubs and DataSlaves and sensors to measure level, conductivity and temperature. The equipment will withstand extremes of temperature across the seasons, as well as accurately and reliable reporting every 15 minutes on the smallest changes in groundwater levels and EC in some very deep monitoring wells.
It’s now been four decades that Van Walt has been supplying customers in Ireland and for many customers we have been a preferred supplier for their environmental and research project requirements. But times are changing and among other factors Brexit has given us a new dimension to contend with and, as we’ve always done over those decades, we look to continually developing our equipment and services to best deal with the needs of our customers.
We have very good news!
We are very proud to let you know that we have joined forces with the Moag family, well-established and experienced colleagues in Ireland, to create Van Walt Ireland. You may already be familiar with John from the excellence of his work at AMC, particularly for his consultancy related to asbestos and Andrew Moag has been training environmentalists for decades. Both Andrew and John will continue their work with AMC but together with Conor Moag, we hope to strengthen and improve Van Walt's services in Ireland. Van Walt Ireland is based in Belfast but the team will be working across the whole of Ireland. The new business will offer all the equipment you have come to rely on but now these will be accessible more locally. Key items of equipment will be available from stock, for next day delivery.
Conor Moag will be the face of Van Walt Ireland in his role as General Manager and there are three directors: Andrew Moag, John Moag and David van Walt. We will pool all the expertise, resources and know-how from the Van Walt and Moag stables to give you the best equipment and services at the best prices in the most effective and efficient manner.
Here at Van Walt Ireland we have the right groundwater pump, groundwater sampler, hall marked filter or groundwater sampling tubing and monitoring well pipe for you.
We have developed a versatile, secure, flexible, sophisticated and accurate web-based telemetry system for monitoring multiple environmental parameters like groundwater; water level; water quality and soil moisture telemetry system...
Accurate and consistent Soil Moisture monitoring has become increasingly important when researching environmental factors like climate change, decreasing water resources, improved crop production and protecting threatened habitats.
A range of sensors and dataloggers, absolute or vented, for water level monitoring. High accuracy, read direct, download data on site or fully telemetry options. We can offer the best sensor for your application.
Irish businessmen Andrew and John Moag have joined forces with a major UK company Van Walt Ltd to form a new venture: Van Walt Ireland. Van Walt is a…View Post
“When we are old and grey, what will we look back on and wish we did differently? What memories will we cherish, what choices (or lack thereof) will we regret?”…View Post
It is to my shame that I must confess that in the year prior to the pandemic I clocked up 116,000 airmiles. It would seem logical to assume that as…View Post
I am coming to the “end of the beginning” of a project to build capacity in freshwater management in Africa. The inspiration for the project came in 2014 during my…View Post
“Be wise to-day; ’tis madness to defer; Next day the fatal precedent will plead; Thus on, till wisdom is push’d out of life. Procrastination is the thief of time……” (Night-Thoughts…View Post
Starting out on my internship with the Tropical Biology Association (TBA), supported by Van Walt, I knew very little about Madagascar. However, right from the beginning of my research it…View Post