The sophisticated dosing system ensures precise mixing of water and commercially available liquid fertilizer. Water connection pressure ranges from a minimum of 1.5 bar to a maximum of 5 bar. It allows for precise dosing of the liquid fertilizer (dilution of 1% means 1 liter of fertilizer is sufficient for 100 liters of water). Four concentrations are selectable: 0.2%, 0.5%, 1.0%, and 2.0%. At a pressure of 4 bar, the water flow rate is 14 liters per minute. Simple rinsing is possible with a neutral position (no addition of fertilizer to the water, resulting in pure flowing water at 14 liters per minute). The handle can be swiveled relative to the container and is quickly and easily mounted using a quick-release fastener and screw cap. This robust, handy device is designed for commercial liquid fertilizers, is maintenance-free, and easy to clean. It is not suitable for nematodes.