Dissolved mineral salts are not allowed to pass through the membrane and become a concentrated reject stream that is sent to drain. These RO systems use high-pressure/high-rejection membranes to achieve a minimum average NaCl ionic rejection of 95 percent. Includes membrane auto flush and 20-in. high flow pre-filter. Other features include powder coated carbon steel support frame, 316L stainless steel 300 psi high-pressure membrane housings, pressure gauges for
pre-filter inlet/outlet, membrane feed, and reject water pressure, low feed water pressure safety switch, digital microprocessor based controller with delayed auto restart after low-pressure shut down, permeate water conductivity meter with high-conductivity alarm output, tank level and pretreatment interlock inputs, permeate, reject recycle, and reject water flow meters, adjustable reject and reject recycle valves, permeate check valve, and automatic inlet solenoid valve.