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7 prior to ozonization and discharge. The Bio-Pure system is designed for easy access during general maintenance. Should any pump or internal part need replacement, it can be accomplished in 30 minutes or less with no specialized tools or equipment required. System operation is normally performed automatically by a high- reliability microprocessor. Should manual operation be required, the automatic systems may be overridden. All automatic and manual operations are performed at a wall-mounted control panel. Flow volume is also monitored automatically at this panel . After treatment, the effluent would be discharged by pumping into a man-made pond from which local irrigation may take place. Water from such ponds may be used to create waterfalls and running streams for aesthetic purposes. If the Bio-Pure treatment recommendation is followed, such waterfalls or streams are completely safe for body contact. All surface irrigation will take place during the early-morning hours and all irrigation will cease at least one hour prior to greenbelt use by the public. It is important that the reader understand that sludge generation is a -function of several factors, the most important of which are composition of incoming waste, treatment process being used, system design, collection system integrity, and plant operator skills. The two most significant factors determining the amount of sludge a system will generate are the process in use and the collection system integrity. Unlike municipal flow through type systems, where sludge is continually drawn off, thus producing high volumes of sludge which must be disposed of, the Bio-Pure batch-flow system retains and recycles the sludge until the daily settlometer (SSDV-60) test indicates 500 ml of sludge, or a 1: 1 ratio of supernatant to sludge in 1. 0 liter of mixed liquor. In each batch, 670 of the mixed liquor (1000 of the activated sludge) transferred to the clarifier from the aeration chamber is returned to the aeration chamber 14 times in every 24 hour period, thus a continuous biologic process takes place as opposed to a one-time biologic process in a flow through system. This is commonly referred to as 100% RAS (returned activated sludge) . Characteristics of the sludge play an important part in the clarifier settling time. A good food source, along with oxygen, produces a fluffy bacteria. It is these light, fluffy bacteria that produce the floccing action in the aeration chamber. Once the MLT is transferred to the clarifier, where both the food source and oxygen are depleted, the sludge loses its fluffiness and is pulled down by gravity, creating a distinct line of separation between the sludge and the clarified supernatant liquid. The supernatant transfer pump volute is located above this separation line (all