D-Block is a preparation used to prevent clogging of irrigation hoses and capillaries. The preparation cleans from salt deposits during cultivation and decomposes itself. D-Block is not harmful to plants and can be used with any fertilizers, as it is based on the principle of an anion wetting agent.
Using D-Block:
Mix 10 ml in 100 l of nutrient solution.
Store in a dark and cool place.