Specs

Bridgestone Retail Operations, LLC
PROJECT MANUAL
Version: January 2012
E. Threaded Plastic Pipe Jointing:
1. Do not use solvent cement on threaded joints.
2. Wrap joints with Teflon tape or use virgin Teflon lubricant.
F. Bell and Socket Plastic Pipe Jointing: Cement joints in accordance with ASTM D2855.
3.04 SLEEVING
A. Provide sleeves for both piping and control wiring where either passes under paved
surfaces.
1. Depths of sleeves shall be same as that required for piping at each location or
condition.
2. Extend sleeves 12 inches beyond paving at each end.
3. Install permanent benchmark at top of curbs for reference to sleeve locations.
3.05 AUTOMATIC DRAIN VALVES
3.06 VALVES
A. Provide automatic low point drains on all zones. Provide two valves at lowest points of
each zone, with each drain installed above a 12 inch x 12 inch x 12 inch deep area of
coarse gravel.
A. Do not locate beneath paved surfaces.
B. Install plumb to within 1/16 inch.
C. Locate within valve box with 6 inch deep layer of coarse gravel beneath bottom of valve.
D. Top of quick coupler valves shall be 6 inches to top of valve box. Top of gravel layer shall
be 3 inches below top of valve.
E. Master Valve (if required on the Drawings):
1. Locate immediately behind backflow preventor.
2. Valve shall be energized by master valve circuit on automatic controller.
3.07 SPRINKLERS
A. Install plumb to within 1/16 inch with top collar, not nozzle, flush with finish grade.
B. Provide swing joint with each sprinkler except where entire head is raised above grade
and/or where rigid riser piping is required.
C. Heads adjacent to paving and curb: Locate between 6 and 12 inches from edge of paving
or back of curb to prevent car overhang to conflict with a fully extended sprinkler.
3.08 ELECTRICAL CONNECTIONS AND CONTROL WIRE
A. Conform to the National Electrical Code (NEC) and local electrical codes.
B. Provide electrical connection to system as designated on the Drawings and as specified
herein.
C. Wire Placement:
1. Do not run control and power supply wiring in same conduit.
2. Provide continuous runs of wire between controller and valves. Splices shall be
made with one of following:
a. Watertight below ground electrical junction boxes.
b. Water-tight connectors, such as utilized for valves, and located within
valve box for ease of locating.
c. The location of electrical splices shall be shown on the As-Built
drawings.
3. Bury control wire beside pipe in same trench. Bundle and tape together at not
more than 10 ft in-tervals.
IRRIGATION SYSTEM 02810 - Page 7 of 8