How long should I run my filter after adding YELLOW OUT®?
At least the first 24 hours, run your filter continuously. Shut off the skimmers and open the main drain so that the water is being pulled from the bottom of the pool. Because of varying amounts of particulate and the quality of circulation and filtration, you may find it necessary to run your system longer and to add a water clarifier. The type of filter will make a difference as to how fast the pool clears. If you backwash a sand filter too often, the sand will not act as a very fine filter for smaller particulate. Therefore, if you have recently backwashed your sand system, there is no need to backwash again before the application of YELLOW OUT®. It's normally recommended that you do not backwash until you have at least a 10 lb. pressure increase over your normal reading for a clean filter.