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2.05 FLOOR DRAINS <br /> A. General: Provide floor drains with cast-iron body,flashing flange and collar with inside caulk,bottom outlet for <br /> drains on grade,hubless,bottom outlet for drains above grade. <br /> B. All floor drams on grade shall be supplied with backwater valves unless otherwise noted. <br /> C. General: Provide floor drains of size as indicated on drawings;and,type,including features,as specified herein: <br /> (Typical units listed below are of Josam manufacture). <br /> D. Floor Drain Type FD-1: Coated cast iron combined floor drain and integral deep drum"P"trap with double <br /> drainage flange,weepholes,side outlet spigot connection,adjustable satin nikaloy round"Super-Flo"strainer with <br /> internal backwater valve. Josam Series No-30600-6AJ. <br /> 1. These drains are for use on grade in toilet rooms,showers,service sinks,kitchen,locker room and other <br /> finished areas. <br /> 2. Where floor drains with funnels are shown,provide Josam Series No.30600-E2-J floor drain with Nikaloy <br /> round funnel strainer with backwater valve. Field welded funnels on strainers are not acceptable. <br /> 3. Omit backwater valve in floor drain at dishwasher. <br /> PART 3: EXECUTION <br /> 3.01 EXAAMATION <br /> A. Verify all dimensions by field measurements. Verify that all drainage and vent piping and specialties may be <br /> installed in accordance with pertinent codes and regulations,the original design,and the referenced standards. <br /> B. Verify all existing grades,inverts,utilities,obstacles,and topographical conditions prior to installations. <br /> C. Examine rough-in requirements for plumbing fixtures and other equipment having drain connections to verify actual <br /> locations of piping connections prior to installation. <br /> D. Examine walls, floors, roof, and plumbing chases for suitable conditions where piping and specialties are to be <br /> installed. <br /> E. Review soil testing information provided to verify conditions are suitable for piping installations. <br /> F. Do not proceed until unsatisfactory conditions have been corrected. <br /> 3.02 PREPARATION OF FOUNDATION FOR UNDERGROUND BUILDING DRAINS <br /> A. Grade trench bottoms to provide a smooth,firm,and stable foundation,free from rock,throughout the length of the <br /> Pipe <br /> B. Remove unstable, soft, and unsuitable materials at the surface upon which pipes are to be laid and backfill with <br /> clean sand or pea gravel to indicated invert elevation. <br /> C. Shape bottom of trench to fit bottom'h of the circumference of pipe. Fill unevenness with tamped granular sand <br /> backfill. At each pipe joint dig bell holes to relieve the bell of the pipe of all loads, and to ensure continuous <br /> bearing of the pipe barrel on the foundation. <br /> 154124 No.99132-CP2 <br />