Theo van der Kaaij - Kaaij Nursery - Vine tomatoes - Berlikum - Netherlands

Our neighbours had been using Ultramins's USAF transmitters for some time and saw positive results from using them. That made us curious too, but we were still holding back because we don't take any chances. Ultramins approached us, as co-owners of Gietwater Berlikum where we and three other horticulturists use a 13,500m2 basin, to also equip it with the transmitters.

This was therefore decided and additionally we ordered for our own company at that time. Initially only for the rainwater basins, but after the transmitters were delivered, we also placed a number of them in the daily supply silo. We work with a low dose of hydrogen peroxide up to (10 ppm) which was unmeasurable for 2-3 weeks. Ultramins explained that this was because the transmitter combined with the H2O2 was breaking down the biofilm and this proved to be true. The quality of the pouring water now looks good and in terms of hydrogen peroxide, we are now measuring 5-10 ppm again. We are impressed with the results so far. We have therefore bought two more transmitters to make sure the basins are also ready for the algae season. For us, the transmitters also contribute to making the cultivation process more sustainable, which is also an important argument for us.