Which is better, a drain to waste or recirculating water system?
Drain to waste is an easier method of watering strictly because it limits the possibility of severe fluctuation in your PPM/EC and Ph of your nutrient solution. A recirculating system may require more monitoring/adjustment of the nutrient solution, but can also help to keep the biology thriving in your system. If you add a beneficial fungus or bacteria to a Drain to Waste system it essentially has one shot at adhering to the plant or the medium. By utilizing a recirculating System the biology is being redistributed several times and has more of an opportunity to establish itself in the plants rhizosphere.
