How do I create drainage holes in the substrate mats?
Drainage holes are created in the new substrate mats at the start of the growing season in order to allow excess irrigation water to drain from the substrate. The number of drainage holes and the position of these holes have a major impact on the crop. This is because these are in part decisive for the water flow in the substrate, the re-saturation capacity and the displacement of old nutrient solutions. Hence, it is very important that you create the drainage holes correctly. Our specialist explains this in this article.