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0 <br /> 8 w <br /> i <br /> - O <br /> W. M . FLOW <br /> r <br /> REDUCED PRESSURE PLAN VIEW <br /> BACKFLOW PREVENTER r <br /> WITH GATE VALVES <br /> a ° W. M . <br /> i <br /> i <br /> UNION <br /> r <br /> W. M . <br /> p i <br /> co FINISHED <br /> GRADE <br /> r <br /> ELEVATION <br /> NOTES <br /> 1 . ALL BUILDINGS EXCEPT SINGLE FAMILY AND SINGLE STORY MULTI - FAMILY <br /> RESIDENTIAL ARE REQUIRED TO INSTALL DOUBLE CHECK BACKFLOW PREVENTER r <br /> WITH REDUCED PRESSURE ZONE FEATURE AS DETERMINED BY UTILITY. <br /> 2 . ALL MULTI - STORY, MULTI- FAMILY SERVICES ARE REQUIRED TO INSTALL <br /> RPZ BACKFLOW PREVENTORS. <br /> 3. APPROVED EQUALS HAVING FULL UL, USC, AND AWWA CERTIFICATIONS MAY i <br /> BE INSTALLED ONLY AFTER SPECIFIC APPROVAL BY IRCDUS. <br /> 4. SUPPORT BACKFLOW PREVENTER FROM WALL OR APPROVED PIPE <br /> SUPPORT SYSTEM . PIPE SUPPORT SYSTEM SHALL BE BRASS, <br /> COPPER OR D. I . P. , AS APPROVED BY IRCDUS. <br /> 5. BELOW GROUND INSTALLATION IN A VAULT MAY BE CONSIDERED <br /> FOR APPROVAL IF FINISHED GRADE OF BOTTOM OF VAULT IS AT i <br /> LEAST 1 ' - 0" ABOVE THE HIGH WATER LEVEL. <br /> 6 , PIPING 2- 1 /2 " OR GREATER SHALL BE FLANGED DUCTILE IRON PIPE. <br /> 7, ALL MATERIALS ARE TO BE PER IRCDUS APPROVED MANUFACTURERS' PRODUCT LIST. r <br /> 8. ALL FASTENERS SHALL BE 316 STAINLESS STEEL ( OR APPROVED EQUAL) . <br /> 9. ALL RPZ BACK FLOW PREVENTERS SHALL BE CERTIFIED BY APPROVED TESTER AND APPROPRIATE <br /> CERTIFIED FORM SUBMITTED TO IRCDUS. i <br /> V DRAWING <br /> INDIAN RIVER COUNTY �� o� No. <br /> DEPARTMENT OF Q BACKFLOW PREVENTER W _ g <br /> UTILITIES SERVICES <br /> RI P <br /> rmAwwr xaoe <br /> s <br />