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OCR: supply jet for water and plastic supply tube with glass or plastic outflow stopcocks returns to filter 'fiber- -glass- lined trough col C. fiber-glass- outflows lined trays from aquariums valve for con trolling alternatere- pressure circulation supply system tem drains from plastic aquariums tubing with conduct op en T filter filter over flows into stora ge res bucket ervoir for waste water from aquar storage res- 10V A.C. ium trays ervoir re circula ting 3/4 ply poom feet pump hung from assembled with across top marine glue and tank with ny on lined with fiber cotton cor glass and resin Seeen supp oxygen uaYiums alternate svstem quariums tbing aqvar travs recirculating wood board nylon tined cords