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� BASIC <br />IRE C J%F <br />� PROTECTION INC. <br />940 N E LOMBARD • PORTLAND. OR 97211 <br />15031 285-1855 0 FAX 1503) 285-0713 <br />Julv 2, 1990 <br />Everett Fire Marshal's Office <br />2811 Oakes Avenue <br />Everett, WA 98201 <br />Attention: Sam Preston <br />Reference: Everett Public Library <br />Basic Fire Job #100 <br />Gentlawn: <br />19632 701h AVE SO SAY 4 • KENT. WA 98032 <br />(206) 672-4133 0 FAX (2061 872.4135 <br />Please find attached preliminary shop drawings for the Everett Public <br />Library, sheets #1 and #2. Please note that I have highlighted the <br />underground main on sheet #1. I am subnitting for your review the <br />following proposed materials for the underground main: L <br />i <br />1) Piping - 6" schedule 10 galvanized pipe, with 10 mil, poly -wrap <br />applied to exterior. '*y <br />i' <br />2) Fittings - Grooved couplings and fittings field wrapped with ,�yu .• <br />poly -wrap after installation. <br />These materials provide for a highly corrosion resistant and self -restrained <br />piping system. <br />I am also attaching a small sketch of a sprinkler head placement mnmDnly <br />used in a double water curtain. This method is ccnnnnly used in malls at <br />separations between store and mall space at the storefront. You may find <br />this to be a workable alternate to the deluge system along grid line 6. <br />If you find the water curtain an acceptable alternate we would like to <br />incorporate it into our design. <br />If you have any questions and/or comments please do not hesitate to call. <br />Yours truly, <br />Basic Fire Protection, Inc. <br />Gordon Swanson <br />Engineering Technician <br />oc: Cree Construction Co. , /3 <br />