Product Review

BRASS EZ-FLO Fertilizer Injection Hose Bib Connectors, 3060-CG (Commercial Grade). Replacement for Plastic 3060 Hose Bib Connector and a component for EZ-FLO and similar/other Fertilizer Injection Systems. An injector takes a fertilizer solution out of a concentrate tank and injects it into irrigation water. To determine the amount of fertilizer being applied, one must know (1) the concentration of fertilizer in the tank (lb of fertilizer per gallon of concentrate) and (2) the rate or ratio at which the concentrate is being injected into the irrigation water (gallon of concentrate per gallon of irrigation water). For example, if 50 lbs of a 15-10-20 soluble fertilizer is dissolved in water making 30 gallons of concentrate, the concentration of fertilizer is 50 lb/30 gallons in the concentrate. And, the concentration of N in the concentrate is 7.5 lb/30 gallons. Likewise the concentration of phosphate, P205, is 5 lb/30 gal, and that of potassium oxide or potash, K20, is 10 lb/30 gal. The concentration of P is 2.2 lb/30 gal (43.7% of P205), and that of K is 8.3 lb/30 gal (83.0% of K20). Further, if the rate that this concentrate is being injected into the irrigation water is 1 gallon of concentrate for each 80 gallons of irrigation water, the injection ratio is 1 to 80, or 1/80. Thus the concentration of the fertilizer in the irrigation water is (50 lb/30 gal) X (1/80) = 50 lb/2400 gal = 1 lb/48 gal. And, the concentration of N in the irrigation water is (7.5 lb/30 gal) X (1/80) = 7.5 lb/2400 gal = 1 lb/320 gal. Likewise the concentration of phosphate in the irrigation water is 5 lb/30 gal) X (1/80) = 5 lb/2400 gal = 1 lb/480 gal, and that of potash is 10 lb/2400 gal = 1 lb/240 gal. The concentration of P in the irrigation water is 2.2 lb/2400 gal = 1 lb/1100 gal, and that of K is 8.3 lb/2400 gal = 1 lb/289 gal.