Van Gog Nurseries - Koen Saris - Pepper/Cucumber - Harvest House - Grubbenvorst - Netherlands

UPDATE APRIL 2026

Van Gog stuurde ons deze gave drone foto’s. Links het bassin van 16.000m2 wat al voorzien is van 8 USAF™ DT100 zenders en waar de algengroei goed onder controle is. Niet zo gek dat zij ook hebben besloten om het andere van bassin van 12.000 m2 ook te gaan behandelen met onze zenders als je het verschil zó duidelijk ziet!

“Bij Van Gog is the quality of our irrigation water one of our spearheads in our policy. Hence, we do not take any chances when making adjustments to our water system.

Ultramins came our way because we have two large pools of 13,000m2 and 15,000m2 respectively and where we struggled to get and keep them free of algae and biofilm.

The technology deployed by Ultramins to combat it, cavitating ultrasound waves, was new to us and its operation unknown. We were therefore somewhat hesitant, but based on good experiences from other growers, we started with 4 USAF™ transmitters in the largest basin. After some time, we saw insufficient effect and followed Ultramins's original advice and increased the number of transmitters to 8.

We continued to treat the other basin as we always did, which takes man hours and resources. The difference between the basins was growing. In the basin where the transmitters were located we saw that the algae disappeared quickly, the bioflim also greatly reduced and have no doubt that it will also disappear completely. With that, it was clear to us that the channels work well.

The saves us a lot of time in terms of treatment and control of the water, because we don't have to worry about it now. Apart from the one-off investment and (low) energy consumption, there are no further maintenance costs.

With this this system meets our high standards and recommend other growers to also have a look at their situation with Ultramins. They think well and professionally!”