Is “Drain-to-Waste” really that much more expensive than running a recirculating system?
Drain to waste provides more control over your plants and helps to prevent diseases. A common concern is that a drain-to-waste system will waste too much nutrient due to excessive amounts of “waste run-off.” This is simply not the case. A dialed in “drain to waste” system will only waste 10-15% of the fed nutrient solution as “run-off.” An example of this is as follows: A given garden uses 5 gallons of water to feed all the plants. Tthe “waste” run-off will only be 1/2 to 3/4 of one gallon of solution.
