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  • How to design a hydroponic stock solution system

    By Antonius Lecuona|Published On: May 27, 2013|Last Updated: October 30, 2014|Categories: Open systems, Systems|Tags: Stock solutions|

    Proportioner systems Open hydroponic systems lend themselves to two different automation systems i.e. proportioner and injector systems. First let look at what a proportioner does. A proportioner can either be electrical or mechanical device that adds liquid, coming from a tank or other source, into a main line in specific ratio’s. For instance, the ratio [...]

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    Is your closed hydroponic farm correctly designed for stock solutions

    By Antonius Lecuona|Published On: May 19, 2013|Last Updated: July 19, 2014|Categories: Closed systems, Fertilizers, Nutrients, Systems|Tags: closed systems, Fertilizers, Stock solutions, Tanks|

    Most automated systems installed in closed hydroponic systems use injectors rather than proportioners. A simplified diagram of where to install such a system is provided below. Many advanced injectors such as the Priva® and Volmatic® systems use much more complex configurations. Most of the systems use two pH probes and two EC probes in case [...]

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  • Here is a quick way to make nutrient stock solutions for hydroponic systems

    By Antonius Lecuona|Published On: May 19, 2013|Last Updated: February 15, 2014|Categories: Fertilizers, Nutrients|Tags: Fertilizers, Stock solutions|

    To make a nutrient stock solution, you need a minimum of two tanks. Nutrient Stock solutions cannot be made in one tank. The reason is that above a certain concentration, calcium reacts with sulphates and phosphates to form insoluble calcium sulphate ([latex]\ce{CaSO4}[/latex]) and calcium phosphate ([latex]\ce{Ca3(PO4)2}[/latex]). The two nutrient tanks will be called Tank A and [...]

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