_O & M MANUAL - WEST LANE MOBILE HOME PARK

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Instructions for Installation of Tablet Feeder, Model 1000 or 1001 Model 1000 The Model 1000 Feeder is designed with a six (6) inch I.D. inlet for use with sewage treatment plants, lagoons, etc. having a standard six inch discharge line. For appli- cations where the plant discharge line is larger or small- er, use the proper reducer or expansion coupling, or the Model 1001. The feeder is connected directly to the dis- charge by butt fitting and use of a flexible coupling. The coupling normally consists of a neoprene sleeve, a stain- less steel shield and clamps. It can be obtained from a local plumbing supply house. For installation in or above the chlorine contact tank, a support must be constructed on which to mount the unit. This support is best made from angle iron and protected against corrosion with an appropriate coating. The Model 1000 must be mounted so that there is a minimum of two (2) inches of free fall of the water from the feeder weir to the water level in the detention tank. For in-line installations where the unit is installed between the clarifier and detention tank, it is necessary to provide a drop -box to : 1) permit free fall from the feeder weir; and 2) provide an attachment for connecting to the extension of the discharge line. The drop -box should be constructed of steel or plastic and sized to fit the feeder housing and the particular installation with regard to elevation. Drawings of a suitable drop -box are available upon request. The unit must be solidly support- ed underneath to prevent strain on the couplings. OPERATION Figure 6 - Cut -Away View Model 1000 4 Model 1001 The Model 1001 is designed with a solid inlet side that may be cut to fit any size discharge line up to 10 in diameter. The hole in the feeder is cut with a sabre saw with a blade that can be used on the polyethylene com- position. A gasket of plastic or fiber at least '14 thick must be cut to fit snugly on the outside diameter of the dis- charge line and large enough to be bolted to the outside of the feeder. Optionally, a suitable grout may be used to connect the unit to the discharge line. For in -tank installations, a support is necessary for mounting the unit. See the Model 1000 discussion. Where possible for in -tank installations, the gasket may be made thick enough to be bolted to the inside tank wall between it and the feeder housing. For in-line installations, a drop -box such as described for the Model 1000 is used. The Model 1001 and drop -box must be solidly supported underneath to relieve the strain on the couplings. WHEN MOUNTING THE FEEDER, BE SURE THAT IT IS LEVEL. THE UNIT SHOULD COMPLETELY DRAIN AT NO FLOW CONDITIONS. Refer to Appendix A for examples of typical installations. Operating Principles The Model 1000 or 1001 will operate automatically with- out personal attention for as long as sixty days, depend- ing upon plant flow and the required chlorine residual. After the initial adjustment. operation is simple, automatic and continuous. (See Fig. 6.) The entire plant flow of treated wastewater passes into the unit through the inlet adapter, or pipe. As the stream of water flows past the feed tubes containing the SANURIL tablets, active chlorine is released into the wastewater by the dissolving action of the water stream in contact with the tablets. At the outlet end, a weir (selected to match plant capaci- ty) controls the height of the water level in the feeder which actually controls the chlorine concentration in the water, regardless of surges in wastewater flow entering the feeder.