Laserfiche WebLink
IRRIGATION <br />Section 02810 <br />Project 15-1207 <br />d. Where assembling soft metal (brass or copper) or plastic pipe, use strap - <br />type friction wrench only; do not use a metal -jawed wrench. <br />e. Threading: <br />1.) Do not permit the use of field -threading of plastic pipe or fittings. <br />Use only factory -formed threads. <br />2.) Use factory -made nipples wherever possible. Permit the use of <br />field -cut threads in metallic pipe only where absolutely necessary. <br />When field -threading, cut threads accurately on axis with sharp <br />dies. <br />3.) Use pipe joint compound for all threaded joints. Apply compound <br />to male thread only. <br />4. Sleeves and conduits: <br />a. Use sleeves of adequate size to accommodate retrieval for repair of <br />wiring or piping and extend a minimum of twelve inches (12") beyond <br />edges of walls or paving. <br />b. Provide removable, non -decaying plug at end of sleeve to prevent <br />entrance of soil. <br />5. Unions: Locate unions for easy removal of equipment or valve. <br />6. Joint Restraints: Install per manufacturer's recommendations. <br />7. Capping: Plug or seal opening as lines are installed to prevent entrance materials <br />that would obstruct pipe. Leave in place until removal is necessary for <br />completion of installation. <br />D. Sub -surface Inline Drip Tubing: <br />1. Install as per Drawings and as per manufacturer's recommendations. Prior to <br />installation of tubing, obtain approval of finish grade in all planters where tubing <br />is to be installed. (See inspection requirements.) <br />2. After tubing is installed, operate system for coverage test. Obtain approval of <br />the Proiect Inspector and/or Landscape Architect prior to backfill. <br />3.13 SPRINKLER HEADS <br />A. Sprinkler heads: Locate as shown on the Drawings except where existing conditions <br />prohibit, or slight changes are approved to achieve as good or better coverage under <br />the same conditions. Do not allow sprinkler head spacing to exceed the maximum <br />shown on the Drawings. Plumb heads. <br />B. Handling, Assembly of Pipe, Fittings, and Accessories: Allow only skilled tradesmen to <br />12 <br />