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I 1 <br /> NOTES <br /> 1. ALL INSTALLED AIR GAPS MUST BE WA DOH <br /> APPROVED. <br /> NEAREST WALL,SIDE RIB 2. THE HEIGHT OF THE AIR GAP MUST MEET THE <br /> OR OBSTRUCTION POTABLE WATER SUPPLY CRITERIA IN TABLE A UNLESS OTHERWISE NOTED. <br /> 3. THE CITY UTILITIES DEPARTMENT MAY REQUIRE THE <br /> 5 v AIR GAP TO BE INCREASED IF INSTALLED WITHIN A <br /> BUILDING WHERE THE AIR PRESSURE IS ARTIFICIALLY <br /> MAINTAINED OR INCREASED. <br /> / EFFECTIVE /i N DISCHARGE TO 4. AIR GAPS LESS THAN 1 INCH SHALL BE APPROVED <br /> /,..... W OPENING NON-POTABLE <br /> a f WATER SYSTEM ONLY AS A PART OF A LISTED DEVICE THAT HAS BEEN <br /> OVERFLOW RIM-\ ¢ TESTED UNDER BACKSIPHONAGE CONDITIONS <br /> LPcc <br /> WITHIN A VACUUM OF A MINIMUM OF 25 INCHES <br /> OF MERCURY. <br /> / <br /> 1 5. TUBULAR SCREENS MAYBE ATTACHED OR THE <br /> 6—r r r r r r r r SUPPLY LINE OUTLET MAY BE CUT AT A 45`ANGLE. <br /> rrr _—. r —ter r _. r — i <br /> r r r r r r r r - /—\ — 6. HOSES AND BYPASSES ARE NOT ALLOWED. <br /> r ,--, � r r rr - — PUMP <br /> - 7. THE INSPECTION OF AIR GAPS SHALL BE INCLUDED <br /> r r r r - / .. IN THE YEARLY TESTING PROGRAM FOR BACKFLOW <br /> r r ,._../ r r r r r r <br /> r r r r r r r r r <br /> ifI> _� DEVICES. <br /> 3 <br /> 1 <br /> 0 <br /> 3 <br /> Y AIR GAP(INCHES) <br /> D IF W>3D IF W_<3D(SINGLE WALL)OR <br /> IF W<_4D(INTERSECTING WALLS) <br /> <0.5 INCH 1 1.5 <br /> <0.75INCH 1.5 2.25 <br /> >_1INCH zxD 3xo CITY OF EVERETT <br /> 0 <br /> 6 PUBLIC WORKS DEPARTMENT <br /> TABLE A <br /> �' " Yra SASS I R.HMI I TR RHELM I p 7,/RB <br /> WO M <br /> x e 03/07/2012 <br /> B AIR GAP FOR <br /> In MAKEUP TANK 519 <br /> I I <br /> MN 10111 MI MR all IlL1111 N 11111 111111 11111 N WM M 111111 MI an all EN Mill <br />