A novel control for use with a reverse osmotic treatment system is disclosed. The unit (9) provides the desired flow of product solution from the system by controlling a "single" valve (3) disposed on a secondary line for conveying a concentrated solution coming out of a reverse osmotic apparatus (4)....http://www.google.es/patents/US4772385?utm_source=gb-gplus-sharePatente US4772385 - Control for use with reverse osmotic treatment system
Control for use with reverse osmotic treatment system