A sufficiant pH-control is crucial for thedevelopement in plant cultivation. In case the pH-value is not right, the plant is unable to exploit certain nutrients. In that case, pH-control has to operate successfully . An extremely low pH-value, in case your pH-control failed, can even lead to an accumulation of heavy metal particles and finally to the dieback of plants. To make sure, the pH-value is always right, pH-regulation and pH-control is essential.