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4 Install Inlet Diffuser Components <br />Install inlet diffuser cover <br />This unit is supplied with a white inlet diffuser cover <br />to prevent the unit from swamping in high flow/ <br />increased head pressure conditions. <br />• If dimension "A" is 13 feet or less, the inlet diffuser <br />cover is not needed, go to Step 5, Connect Piping. <br />• If dimension "A" is more than 13 feet, or a high <br />flow/increased head pressure condition exists, <br />follow Steps below. <br />Remove Safety Star" insert and remove inlet diffuser cover from the parts bag. Slide inlet <br />diffuser cover into top of inlet diffuser and rotate clockwise until cartridge drops onto inlet <br />diffuser cover retainer pins. Continue rotating clockwise until pins are fully seated. <br />0 OPTIONAL: install extension handle <br />For easy inlet diffuser cover <br />removal in deep burial <br />installaticns, 1-1/2" PVC SCH. 40 <br />pipe may used as an extension <br />handle. Before risers have been <br />installed, cut pipe to length <br />and attach to top of cover <br />using PVC primer/cement. <br />Extension handle length should <br />be about 12" shorter than total <br />riser height. <br />i <br />inlet diffuser cover <br />retainer pin <br />cartridge <br />receiver slot <br />Med installation <br />Ning optional <br />nsion handle <br />Schier I GS -50 Installation Guide page 7 of 10 <br />