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Figure 7 Riser pipe <br /> measurement T <br /> K <br /> H <br /> Example: 8ft di ameter tank with 2" ta11 4" fitting, with 54" Riser height (di mend on from <br /> the top of the nipple inside the spi I I container to the 4" fitting on the tank measurement <br /> K) . <br /> H = 96" tank + 2" tall fitting = 98 <br /> C= 95% of Tank Capacity = 86.5 (Di psti ck readi ng or determi ned from a Tank Chart) <br /> Y= 98-86.5-4.50 = 7.0 <br /> X = 7.0/.866 = 8.08 <br /> L = y squared = 49 + x squared =65.31 add together and square root it = 10.69" <br /> Add '/4" to L for poppet thread total length of float rod 10.94" <br /> K = 2" i nternal ri ser ni ppl e cad cut ati ons. M easure f rom the top of the ni ppl e i nd de the <br /> spi I I contai ner to the top of the 4" fitti ng on the tank and then add 2". <br /> S= Conf i rm Ri ser R pe at correct hei ght. After assembly of the ri ser pi pe and coupl i ng <br /> measure the top of the 4" adapter to the shoulder on the valve. (S di mend on on drawi ng <br /> on the next page.) Adj ust the 4" adapter up and down the 2" ri ser to match K I ess the 2" <br /> added for threadi ng on the top fi I I adapter. When correct hei ght i s confi rmed ti ghten al 13 <br /> set screws on the 4" adapter to I ock the vat ve at the correct hei ght. <br /> IMPORTANT NOTICE- All <br /> fi I I s are requi red to be done <br /> through wire mesh screen to <br /> keep out contami nants. <br />