REDI-SEP® when mixed as directed, preserves eye wash station water volumes at minimum levels of 4 gallons (15 liters) and max levels of 20 gallons (75 liters). Eye wash station lines should be flushed weekly with a 15 second flush to ensure proper operation. All test water should be replaced with clean potable water. Replacement potable water for these tests will not reduce the effectiveness of the REDI-SEP® to the station. Refer to instructions supplied with eye wash for further testing procedures. It is recommended that the station be cleaned and the water replaced at a minimum of every six months. Examination at weekly intervals which give evidence of any particulates or discoloration suggests the water be replaced immediately. Other Information: Store at room temperature 15°-30° C (60°-80° F)