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What is a Recirculating Hydroponic System?

A recirculating system is any hydroponic setup that returns the excess nutrient solution (runoff) back to a central reservoir for future use. Recirculating systems are regularly topped off with fresh water and pH corrected as needed. The nutrient solutions in most recirculating systems are generally discarded after 7-14 days of continuous use.

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Updated on November 11, 2019

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