What's New
Dubois
Sampling equipment does not need to be expensive
April 18, 2024… especially when it concerns sampling for (soil) pore water.
Read MoreDubois
When inches and millimetres matter
March 18, 2024Despite being of an age when we learned metric alongside imperial, I find it difficult to do the mental gymnastics to convert a foot into centimetres. The grey cells are totally overwhelmed when I’m...
Read MoreDubois
A lesson in Critical thinking..
March 14, 2024Socrates would have been proud of us last week.. The level of discussion and uncertainty that ensued over what appeared to be a simple question evolved into multiple email chains that deserved to be discussed...
Read MoreVan Walt News
Spot measurement v. continuous environmental monitoring
August 25, 2023Environmental monitoring has developed considerably over the years. From the time when a consultant went out monthly or quarterly with a dip tape to monitor the groundwater level in a borehole, wind forward...
Read MoreVan Walt News
Measuring Nitrates (NO3, NO3-N) in the field
June 20, 2023The interest in Nitrates is nothing new. One way or another we have been measuring them for half a century.
Read MoreVan Walt News
Save time, save money, save effort, get better results – use low-flow sampling…
June 1, 2023A client recently contacted me to ask if we can repair their high flow purge pump and or sell then a new one. They were using it for (among other applications) to purge a 70m deep bore 3 times for a...
Read More
Full colour magazine containing in depth articles from our customers & contacts
Got a story you want to share? Email David van Walt.
Van Walt Environmental Equipment
A small selection of our environmental equipment