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Lifting Arm — 304 SS . <br /> ' Replace paragraph 2 . 04 ( C) with : <br /> The filter elements shall be one piece single open- end units , rated for 5 <br /> ' micron filtration, model HFT5M40A- TXN, as manufactured by Parker- <br /> Hannifin . <br /> ' SECTION 11240 - STATIC MIXER <br /> Replace paragraph 2 . 02 (A) with : <br /> ' The mixers shall be the static in- line type for turbulent mixing with no <br /> moving parts . The mixer shall produce homogeneous mixing , blending , <br /> ' and dispersion of 93 % sulfuric acid and scale inhibitor in the raw water. <br /> Replace paragraph 2 . 02 (C) with : <br /> ' The mixer shall be constructed of 316L SS . <br /> ' SECTION 11930 - PUMPS- GENERAL <br /> Replace paragraph 3 . 04 with : <br /> Clean and disinfect the pumps in accordance with Section 02675 , then flush <br /> thoroughly before making final connections to any assembly . <br /> ' SECTION 13100 - LIGHTNING PROTECTION <br /> ' Replace Section 13100 with attached revised Section 13100(A1 ) . <br /> SECTION 15100 — PIPING AND VALVES <br /> Amend paragraph 2 . 04 PIPE (A) by deleting : <br /> ' 7 . Couplings shall be ductile iron grooved end couplings suitable for <br /> performance on steel , stainless steel , and PVC schedule pipe . <br /> Couplings shall be galvanized style 77 flexible couplings , as <br /> ' manufactured by Victaulic , or equal . <br /> Amend Part 2 - PRODUCTS by adding paragraph 2 . 23 : <br /> 2 . 23 GROOVED COUPLINGS <br /> ' A . All Grooved Couplings shall be galvanized style 77 flexible couplings , <br /> as manufactured by Victaulic , or equal . <br /> 044572000 <br /> ADDENDUM 1 <br /> ' Page 4 of 5 <br />