The trays normally last 20 years. The advantage of High Impact Polystyrene is mainly the UV-stability. We also added a special UV protector to the topside, so the lifetime is increased as much as possible. The Danish Hydro Tray is chemical resistant and food approved.
The tray is designed with large drain channels along the sides and smaller drain channels across. On the 2 edges of the tray we have added a smart valve sump to keep roots and leaves out of the drain.
The unique design of drainage channels is produced in such a way, that the border-effect with a dry culture on the sides of the tray (caused by high evaporation) is minimized, by assuring a 2 mm higher water level and a longer watering time for the plants along the edges.
The trays are produced in a material of highest quality. The modern production methods and tools ensure a so far unknown quality and precision of ebb/flow bench trays. These conditions hands the end user a quality product that ensures a problem free, long lifespan.
The Danish Hydro Trays have been manufactured in high impact polystyrene (HIPS) since 1984.