Swimming Pool Codes - City of Fargo

F. A bottle of ammonium hydroxide shall be available for checking for chlorineleaks.G. A chlorine cylinder repair kit should be available for emergency use.A-12 INJECTOR LOCATION FOR VACUUM-OPERATED CHLORINATORSMost vacuum operated-gas chlorinator problems have been due to improper location of theinjector, resulting in insufficient water pressure to develop the necessary vacuum foradequate chlorine flow. The point of chlorine injection on a swimming pool filter recirculationline should be carefully chosen so that the water pressure at this point is as low aspossible. The injector uses a water jet to create a vacuum and will work satisfactorily only ifthere is enough pressure on the water supply to the nozzle to create a strong jet action.Adequate pressure for operation of the chlorine injector may be obtained by installing theinjector on the suction side of the re-circulation pump and connecting the injector watersupply to the pressure side of the re-circulation pump. The pressure differential developedacross the pump is more than adequate for proper operation of the gas chlorinator42