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SECTION -02810 IRRIGATION <br /> PARTI - GENERAL <br /> c <br /> 1.01 WORK INCLUDED <br /> Work of this Section generally includes a provision of an underground inigation 1.05 DELIVERY,STORAGE&HANDLING(CONT.) 2.01 MATERIALS ICONT.) 3.03 INSTALLATION(CONT.) 3.03 INSTALLATION(CONT.) _ <br /> system including the following: <br /> Remove and replace cracked,broken,or contaminated items or elements b.Control Valve-2 way,solenoid pilot operated type made of synthetic, 5. Use 45 degree ells when making perpendicular crossings of above grade 3. Compact backfill material in 6 inch lifts at 95%maximum density determined N <br /> prematurely exposed to moisture,inclement weather,snow,ice,temperature non-corrosive material;diaphragm activated and slow closing.Include PVC piping,to depress bottom pipe. in accordance with ASTM D1557 using manual or mechanical tamping -O <br /> *Trenching,stockpiling excavation materials,and refilling trenches. extremes,fire or job site damage. freely pivoted seat seal;retained(mounted)without attachment to devices. <br /> diaphragm. 6. Lay pipe and make all plastic to plastic joints in accordance with >. <br /> *Complete systems including but not limited no piping,backflow preventer Handling of PVC Pipe-Exercise care in handling,loading and storing of PVC c.Pressure Reducing Valve-Plastic/Fiberglass construction with adjusting manufacturers recommendations. 4. Set in place,cap,and pressure nest all piping under paving,in presence of H <br /> pipe.All PVC pipe shall be transported in a vehicle which allows length of pipe nu}. Consultant or Owner prior to backfilling and paving operations. <br /> assemblies,valves,fittings,heads,controller wiring and final adjustments to to lie flat so as not to subject in to undue bending or concentrated external Drip Tubing: L1.1 � N h 0 <br /> 0 <br /> ensure efficient coverage as determined by Consultant. loads.All sections of pipe that have been denied or damaged shall be Copper Pipe and Fittings: 5. Piping under existing walk or concrete pavement shall be done by jacking, <br /> * discarded,and if installed,shall be removed and replaced with new piping. 1. Install fitting connections per manufacturers recommendations. boring,or hydraulic driving,but where cutting or breaking 2g of walks and/or E `" o" <br /> Water connections. 1. Copper Pipe-Type K hard tempered. concrete is necessary,it shall be done and replaced at no cos}to Owner. U E w <br /> *Replacements of unsatisfactory materials. 2. Use only manufacturer provided or recommended hole punch when Obtain permission and prior approval to cut or break walks and/or concrete y <br /> I.Ob JOBSITE CONDITIONS 2. Fittings-Wrought copper,solder joint type. making penetrations in drip tubing for insert fittings.Use of other hole punch from Owner. - O o <br /> *Clean-up,inspection,and approval. Protection of Property: ' <br /> shall be cause for immediate removal and replacement of all installed drip U o <br /> ... H <br /> 3. Joints-Soldered with solder,45%silver,157copper,16%zinc,and 247. tubing. 3.04 FIELD QUALITY CONTROL <br /> *Tests. t 1145F id d li t 1125 F .lid anqus a d i sos a dmum an '� LL <br /> I. Preserve and protect all frees,plants,monuments,structures,and paved ca o rn <br /> 3. Install drip line blow-out stubs at all dead ends of drip tubing. Flushing areas from damage due to Work of this Section.In the event damage does g-After piping,risers,and valves are in place and connected,but prior <br /> occur,all damage to inanimate items shall be completely repaired or Brass Pipe and Fittings: to installation of sprinkler heads,quick coupling valves,and air release valves, w o <br /> 1.02 REFERENCES 4. Any deviations from drip tube routing shown on drawings must be approved w o <br /> replaced to satisfaction of Owner.All injury to living plants shall be repaired 1. grass Pipe-85%red brass.AM51 Schedule 40 screwed e. b consultant thoroughly flush piping system under full head of wafer pressure from dead end W c <br /> by Owner,and all costs of such repairs shall be charged to and paid by p pipe. Y prior to installation. fittings.Maintain flushing for 5 minutes through furthermost valves.Cap riser <br /> Perform Work in accordance with requirement of Conditions of the Contract W w 5 0 <br /> Contractor. after flushing. <br /> and division 01-General Requirements as well as provisions of all applicable 2. Fittings-Medium brass,screwed 125 pound class. Control Wiring: ,� v <br /> laws,codes,ordinances,rules and regulations.Conform to requirements of 2. Protect buildings,walks,walls,and other property from damage.Flare and Testing-Conduct tests in presence of Consultant.Arrange for presence of <br /> reference information listed below except where more stringent requirements Quick Coupling Valves-Brass two-piece body designed for working pressure of 1. Low Voltage Wiring: U 5 <br /> barricade open ditches.Damage caused to asphalt,concrete,or other Consultant a minimum of 48 hours in advance of testing.Supply force pump y <br /> are shown or specified in Contract Documents. 150 psi;operable with quick coupler.Equip quick coupler with locking ribber <br /> building material surfaces shall be repaired or replaced at no cos}to and all other test equipment. � <br /> Owner.Restore disturbed areas to original condition. cover. a.Bury control wiring between controller and locate valves in pressure <br /> 1.American Society for Testing and Materials)ASTM)-Specifications and Test supply line trenches,with wires consistently located below and to one I. After backfilling,and installation of all control valves,quick coupling valves, N <br /> Methods specifically referenced in this Section. Existing Trees: Valve Boxes: side of pipe,on}op of initial pipe bedding,or in separate trenches. fill pressure supply line with wafer,and pressurize to 40 PSI over the <br /> b.Bundle all 24 volt wires at 10 foot intervals with electrical or duct}ape. tl <br /> 2.Underwriters Laboratories UL-UL Wires and Cables. 1. Drip Line Blow-out Stubs,and Wire Stub Box-Carson#910-12. c.Provide an expansion loopat pressure supplyline angle fittings,everydesignated static pressure or 120 PSI,whichever is greater,for a period of 2 U <br /> ( ) I. All trenching or other Work under limb spread of any and all evergreens or p g g hours. y <br /> low branching deciduous material shall be done n hand or by other <br /> electric control valve location(in valve box),and at minimum 500 fee} <br /> 2. 3/4 inch through 2 inch Control Valves-Carson#1419-13B. intervals.From expansion loop by wrapping wire at leas}8 times around <br /> 1.03 QUALITY ASSURANCE methods so as to prevent damage to limbs or branches. 2. Leakage,Pressure Loss-Test is acceptable if no leakage or loss of pressure is Z <br /> an inch pipe and with drawing pipe. evident during test period. <br /> Installer Qualifications-Installer shall have had considerable experience and 2. Where it is necessary to excavate adjacento existing trees,use all possible 3. Drip Valve Assemblies-Carson#1419-136. d.Make splices and electric control valve connections using Rainbird <br /> demonstrated abilityin the installation of irrigation s stem 5 of specified Pentite connectors or similar dry splice method. ■ ■ <br /> y () p type(s) care to avoid injury to tress and free rook.Excavation,in areas where 2 4. Control Wiring Splices-Canon#910-12. e.Install control wire splices not occurring at control valve in a separate 3. Leaks-Detect and repair leaks. <br /> sta neat,orderly and responsible manner in accordance with recognized inches and larger rook occur,shall be done by hand.Roots 2 inches or splice valve box. <br /> standards of workmanship.To demonstrate ability,experience and financial larger in diameter,except directly in the path of pipe conduit,shall be Electrical Control Wining: 4. Retest system until pressure can be maintained for duration of test. <br /> stability necessary for this Project,submit if requested by Consultant prior to tunneled under and shall be heavily wrapped with burlap to prevent g' f.Install one control wire for each control valve. q <br /> contract award the following: scarring or excessive drying.Where a trenching machine is operated close g.Run 2 spare#14-1 control wires from controller pedestal to Iasi electric 5. Before final acceptance,pressure supply line shall remain under pressure for <br /> 1. Low Voltage: control valve operated b controller on each and eve le f 2�d�bm <br /> to frees having rook smaller than 2 inches in diameter,wall of trench P Y every g o pressure a period of 48 hours. <br /> supply line.Label spare wires at controller and wire stub box.Loop a <br /> 1. Lis}je 3 projects completed in the last 2 years of similar complexity to this adjacent to free shall be hand rimmed,making clean cuts through roofs. a Q <br /> a.copper Control Wire-AWG OF ILL approved gauge <br /> gauge direct burial minimum of 24 inches from all spare wires inside every control valve box Walk Throu h f p <br /> Project.Description of projects shall include: Roots 1 inch and larger in diameter shall be painted with two coats of Tree g or Substantial Completion: ��vohr <br /> copper wire for all control wires,and No.l2 gauge direct burial copper operated by controller. b <br /> Seal.Trenches adjacent to trees shall be closed within 24 hours,and when wire for all common wires. h.Run all future control wires from controller pedestal to point indicated on <br /> a.Name of project. }his is not possible,side of trench adjacent to tree shall be kepi shaded with P I. Arrange for Consultants presence a minimum of 48 hours in advance of <br /> b.Location. moistened burlap or canvas. b.Wire Colors: drawings.Coil a minimum of ten(10I feet at termination and install in 10 walk-through. <br /> 1)Control Wires-Red. inch round valve box.Label all wires at termination. <br /> c.Owner. 2)Common Wires-White. 2. Entire System shall be completely installed and operational prior to ■ ■ <br /> d.Brief description of work and project budget. Protection and Repair of Underground Lines: 3 Master Valve Wires-Blue. <br /> 2. High Voltage Wiring for Automatic Controller: scheduling of walk-through.All sodded areas are to be complete with <br /> 4)Future Wires-Same as control and common wire(labeled at head het ht and valve boxes ad'usted accordingly. <br /> 2. Current company financial statement. I. Request proper utility company to stake exact location(including depth)of terminations). g I <br /> all underground electric,gas,or telephone lines.Take whatever a.Provide 120 volt power connection to automatic controller. <br /> Special Requirements: precautions are necessary to protect these underground lines from c.If multiple controllers are utilized,and wire paths of different controllers 3. Operate each zone in its entirety for Consultant at time of walk through and <br /> damage.In the event damage does occur,all damage shall be repaired <br /> cross each other,both common and control wires from each controller Automatic Controller: open all valve boxes. <br /> shall be different colors approved by Consultant. <br /> 1. Tolerances-Specified depths m pressure supply lines and laterals and pinch by Contractor unless other arrangements have been made. d.Control wire connections and splices shall be made with 3M direct bury 1. Install controller in accordance with manufacturers instructions as detailed 4. Consultant shall prior to Final <br /> of pipes are minimums.Settlement of trenches is cause for removal of finish generate a list of items to be corrected <br /> grade treatment,refilling,recompaction,and repair of finish grade 2. Replacement of Paving and Curbs-Where trenches and lines cross existing splice,Rain Bird Pentite connectors,or similar dry splice method. and where shown on Drawings. Completion. <br /> treatment. roadways,paths,curbing,etc.,damage to these shall be kept to a 2. High Voltage-Type required by local codes and ordinances,of proper size 2. Connect remote control valves to controller in numerical sequence as 5. Furnish all materials and perform all Work required to correct all <br /> minimum and shall be restored to original condition. to accommodate needs of equipment serviced. shown on Drawings. q <br /> 2. Coordination with Other Contracts-Pro}ecL maintain,and coordinate g inadequacies due}o deviations from Contract Documents,and as directed <br /> Work with Work under other Sections. 1.07 WARRANTY/GUARANTY Electric Control Valves-As noted on drawin s by Consultant. <br /> 9 3. Final location of controller shall be approved by Consultant prior to <br /> 3. Damage to Other Improvements-Contractor shall replace or repair installation. 6. During walk-through,expose all drip emitters under operations for <br /> damage to grading,soil Remove and replace cracked,broken,or contaminated items or elements Pipe bedding material-Construction grade sand approved by Consultant. <br /> preparation,seeding,sodding,or plotting done observation es Consultant to demonstrate that they are performing and <br /> under other Sections duringprematurely exposed to moisture,inclement weather,snow,ice,temperature 4. Each controller shall have a dedicated separate ground wire. installed as deli <br /> work associated with installation of irrigation extremes,fire or job site damage. Automatic Controller-As shown on drawings. walk-through <br /> prior to placing of all mulch material.Schedule <br /> system at no additional cost to Owner. 5. Above separate walk-through if necessary. '^ <br /> ground conduit shall be rigid galvanized with appropriate fittings. v <br /> Handling of PVC Pipe-Exercise care in handling,loading and storing of PVC Backflow Preven}er-As shown on drawings. Below ground conduit shall be Schedule 40 PVC. Walk-Through for Final Completion: W <br /> 4. Work involving substantial plumbing for installation of backflow,preven}ers, 9 p <br /> copper service and related work shall be executed by licensed and pipe.All PVC pipe shall be transported in a vehicle which allows length of pipe <br /> bonded plumberls),performed in accordance with prevailing codes and to lie flat so as not to subject it to undue bending or concentrated external - Quick Coupling Valves: I. Arrange for Consultants presence a minimum of 48 hours in advance of <br /> loads.All sections of pipe that have been dented or damaged shall be PART III EXECUTION <br /> regulations. walk through. <br /> discarded,and if installed,shall be removed and replaced with new piping. 3.01 INSPECTION: Install quick couplers on double swing-joint assemblies of Schedule 80 PVC 7 Z <br /> 5. Work involving connection to,installation,or extension of 120 volt or greater pipe;flush to grade.Angled nipple relative to pressure supply line shall be no 2. Show evidence no Consultant that Owner has received all accessories, L O <br /> electrical service,shall be executed by a licensed and bonded electrician, 1.08 MAINTENANCE Examine areas and conditions under which Work of this Section is to be more than 45 degrees and no less than 10 degrees.Install quick coupling as charts,record drawings,and equipment as required before Final Q W I­_performed in accordance with prevailing codes and regulations. performed.Do not proceed with Work until unsatisfactory conditions have detailed. Completion walk-through is scheduled. '^ 1 N Ur <br /> Furnish the following maintenance items to Owner prior to final Acceptance: been corrected. Drip Valve Assemblies-Install drip valve assemblyas detailed. v <br /> 1.04 SUBMITTALS 3. Operate each zone identified as deficient at substantial completion W CL Z <br /> 1. 2 sets of special tools required for moving,disassembling,and adjusting walk-through for Consultant at time of final completion walk-through to W = <br /> Grading operations,with the exception of final grading,shall be completed Drip Emitters-Ins}all drip emitters as detailed. w N <br /> each type of sprinkler head and valve supplied on this Project. ensure correction of all incomplete items. <br /> Prepare and make submittals in accordance with conditions of the Con}roc}, and approved by Owner prior to staking or installation of any portion of <br /> 2. 2 keys for each automatic controller. irrigation system except sleeving. Valve Boxes: 4. Items deemed not acceptable by Consultant shall be reworked to <br /> Records Drawings(As-Builts): complete satisfaction of Consultant. v7 <br /> 1. Install one valve box for each type of valve installed as detailed,flush with ` Q H <br /> 1. At onset of irrigation installation contractor shall secure m oar se as of site 3. I quick coupler key and matching hose swivel. W <br /> Y Pi 3.02 PREPARATION grade for all sodded areas and above grade for all planted areas. 5. If after request to Consultant for walk-through for Final Completion of 1/ Z � <br /> plan from Landscape Architect.Make blue-line or black-line prints for every inigofien system,Consultant finds items during walk through,Contractor Q W <br /> week on Project.At end of every day,revise prints for Work accomplished 1.09 EXTRA STOCK Staking shall Occur as Follows: 2. Valve box extensions are not acceptable except for master valve. shall be charged for all subsequent walkthroughs.Funds will be withheld 7 1 <br /> that day in red ink.As-built sepias shall be brought up-to-date at close of L W <br /> workingday on eve Friday b a qualified drafts erson.One up-to-date In addition to the installed system,furnish the following items to Owner:A 4 per from final payment and/or re}ainage}o Contractor,in amount equal to LL <br /> y every Y y q p p- Y 9 P 1. Mark with powdered lime or marking paint,routing of pressure supply line 3. Install gravel sump after compaction of all trenches.Valve box to rest on addi}tonal time and expenses required by Consultant to conduct and L U <br /> print shall be mailed to Consultant on Monday of each week.An additional 100 installed drip emitters of each type used. and flag heads and control valve locations for first series of zones as gravel sump.Place final portion of gravel inside valve box after valve box is <br /> document further walk-through as deemed necessary to ensure <br /> print of record plan(s)shall be available at Project Site.Upon completion of directed by Consultant.Contact Consultant 48 hours in advance and backflled and compacted. compliance with Contract Documents. <br /> Project submit for review,prior to final acceptance,final set of as-built mylar request rev <br /> ie of staking.Consultant will review staking and direct changes <br /> sepias.Dimension from two permanent points of reference(building PART II PRODUCTS if required.Staking review does not relieve installer from coverage problems 4. Brand all valve box lids.Letter and number size shall be no smaller than 1 U_ <br /> comers,sidewalk,road intersections or permanent structures),location of 2.01 MATERIALS due to improper placement of heads after staking. inch and no greater in size than 1-inches.Depth of branding sholl be no 3.05 ADJUSTING <br /> the following items: more than 1/8 inch into valve box lid as follows: <br /> General Piping: Install sleeving under all asphalt paving and concrete walks,prior to concreting Upon substantial completion of installation,fine-tune entire system by regulating <br /> a.Connection to existing water lines. and paving operations,to accommodate piping and wiring.Compact backfill a.Control valves-Brand controller letter and station number on lid of each valves,adjusting patterns and break-up arms/screws,and setting pressure <br /> b.Routing of pressure supply lines(dimension every 100 feet along routing). around sleeves no 957.Standard Proctor Density within 27.of optimum moisture control valve box. reducing valves or throttling control valve flow controls at proper pressure no <br /> 1. Pressure Supply Lines)downstream of backflow prevention units)-Class content in accordance with ASTM D1557. b.Quick Coupling Valves-Brand quick coupling valve box lids with letter Provide optimum and efficient coverage.9 Flush and adjust <br /> c.Electric control valves. all sprinkler heads <br /> d.Quick coupling valves. 200 BE(1) Q C for optimum performance and to prevent overspray onto walks,roadways,and <br /> e.Drip line blow-out stubs. Trenching-Trench excavation shall follow,as much as possible,layout shown c.Wire Splices-Brand all wire splice box lids with letters W.S. buildings as much as possible.Heads of same type shall be operating at same <br /> f.Control wire routing(if not with pressure supply line). 2. Non-pressure lines-Class 200 BE-. on Drawing.Dig trenches straight and support pipe continuously on bottom of d.Drip Tubing Blow-out Stubs-Brand controller letter and station number on pressure+/-7%, <br /> g.Other related equipment as directed by Consultant. trench.Trench bottom shall be clean and smooth with all rock and organic lid of each drip tubing blow-out box lid. <br /> 3. Drip Tubing-Hardie EHD 2057-050 DURA-POL Blue Stripe Hose. debris removed.Pressure supply line trenches shall be over-excavated as If it is determined that irrigation adjustments will provide proper and more <br /> 2. Consultant will not certify any pay request submitted by the Contractor if required to allow for bedding material.Trench depth shall be uniform as Backflow,Preventer-Install as detailed Drawings. adequate coverage,make such adjustments prior to Final Acceptance,as <br /> the as-buitt drawings are not current,and processing of pay request will not 4, Emitter Tubing-by emitter manufacturer. required to meet minimum depth requirements for type of piping. directed,at no additional cost to Owner.Adjustments may also include <br /> occur unfit as-builts are updated. Control Wiring: changes in nozzle sizes,degrees of arc,and control valve throttling. <br /> 1. Clearances:d Fittings: <br /> i <br /> Plastic pipe an n s: <br /> 3. Prior to scheduling walk-through for substantial completion,contractor to g 1. All control wiring to be laid to bottom and side of pressure supply line All sprinkler heads shall be se}perpendicular to finish grade unless otherwise ■ ■ <br /> submit all as-builts information to consultant for approval. a.Piping smaller than 3 inches-Trenches shall have a minimum width of 7 trench.Separate wire trenches will not be allowed unless approved by designated. <br /> 1. Identification Markings: inches. Consultant prior to installation. R E V I S 10 N S: <br /> Controller Drawings-Do not prepare controller drawings until record(as-built) b.Line clearance-Provide not less than 6 inches of clearance between Areas which do not conform to designated operation requirements due to <br /> drawings have been approved by Consultant. a.All pipe no be identified with following indelible markings: each line,and not less than 12 inches of clearance between lines of Backfilling-Do not begin backflling operation until required system tests have unauthorized changes or poor installation practices shall be immediately <br /> 1)Manufacturers Name. other trades. been completed.Backfill shall not be done in freezing weather except with corrected at no additional cost to the Owner. <br /> wi Q <br /> 1. Provide controller drawing,automatic controller. 2)Nominal pipe size. prior approval by Consultant.Leave trenches slightly mounded to allow for <br /> 3)Schedule of class. 2. Pipe and Wire Depth: settlement after backfilling is completed.Trenches shall be finish graded prior 3.06 CLEANING <br /> a.Controller drawing may be same size reproduction of record drawing,if to walk-through of system by Consultant. <br /> scale permits fittingInside controller door without folding drawing.If 4)Pressure Rating. <br /> � 9 9� a.Pressure Supply Piping-24 inches from}op of pipe. Maintaining continuous cleaning operation throughout duration of Work. PROJECT#: <br /> photo reduction prints are required,keep reduction to maximum size 5)NSF lNanional Sanitation Foundation)seal of approval. b.Non-pressure piping(pop-up)-18 inches from top of pipe. 1. All pressure supply lines shall be bedded with construction grade sand 4 Dispose of off-site at no additional cost to Owner,all trash or debris generated CAR 107 <br /> possible to retain full legibility. 6)Date of extrusion. c.Control Wiring-Side and bottom of pressure supply line. inches below invert of pipe,to 6 inches above top of pipe and width of by installation of irrigation system. <br /> b.Controller drawing shall be blue-line print of actual as-buiB system, d.Drip tubing-12 inches from top of pipe. trench when site conditions are rocky or otherwise unfavorable. SCALE: <br /> showing area covered by that controller. 2. Solvent Weld Pipe-Manufactured from virgin polyvinyl chloride(PVC) e.Emitter tubing-12 inches from top of pipe(non slope plantings).4 inches NTS <br /> c.Identity area of coverage of each remote control valve,using a compound in accordance with ASTM D2241 and ASTM DI784;cell from top of pipe(slopes 2:1 or greater). 2. Materials-Excavated material is generally considered satisfactory for <br /> distinctly different pastel color for each zone.Highlight heads,lateral classification 12245-B,Type 1,Grade 1. backfill purposes after completing bedding requirements.Backfill material ISSUED FOR: <br /> piping,and control valves. 3. Boring will be permitted only where pipe must pass under obstruction(s) shall be free of rubbish,vegetable matter,frozen materials,and stones <br /> d.Following review of controller drawings by Consultant,hermetically seal which cannot be removed,and must be approved by consultant if not larger than 2 inches in maximum dimension.Do not mix subsoil with topsoil. REVIEW <br /> each drawingbetween two layers of 20 mm thick clear plastic. a.Fittings-Standard weight,Schedule 40,injection molded PVC; <br /> specifically indicated on construction drawings.Final density of backfill shall Material not suitable for backfill shall be hauled away.Contractor shall be DRAWN B Y: <br /> e.Controller drawing shall be completed and approved by Consultant complying with ASTM D1784 and D2466,cell classification 12454B. match that of surrounding soil.Use of sleeves of suitable diameter is responsible for providing suitable backfill if excavated material is NOTE: <br /> prior to final completion walk-through of inigation system. 11 Threads-Injection molded type(where required). acceptable if installed first by jacking or boring,and pipe laid through unacceptable or not sufficient to meet backfill,compaction,and final Washington State Requirements supercede these TEAM <br /> f. Attach approved controller drawing to inside of each controller door 2)Tees and ells-Side gated. sleeves.Observe same precautions as though pipe were installed in open grade requirements. <br /> using self adhesive Velcro strips. b.Threaded Nipples-ASTM D2464,Schedule 80 with molded threads. trench. Irrigation specifications.Contractor to notify DATE: <br /> c.Joint Cement and Primer-Type as recommended by manufacturer of 3. Do not leave trenches open for a period of more than 48 hours.Open Greey Pickett of any changes. 04.07.2022 <br /> Operation Manual: 3.03 INSTALLATION excavations shall be protected in accordance with OSHA regulations. <br /> Submit 3 sets of operations manual to Consultant for approval or prior to pipe and fittings. DRAWING: <br /> scheduling final completion walk-through.Manual to include the following in 1 Locate other equipment as near as possible to location designated on 4. Compact backfill to 90%maximum density in 6lifts,determined in <br /> x 3 ring binder: Low Pressure/Volume Systems: accordance with ASTM D155-7 utilizing the following methods: IRRIGATION SPEC'S <br /> construction drawings.Deviations shall be approved by Consultant prior to g g ■ ■ <br /> 1. Index sheet stating project name,and listing contractor name,address, 1. Emitters as indicated on drawings. installation. a.Mechanical tampering. <br /> phone number and contract person including Primary Sub-Contractors. PVC Piping: b.Puddling or pending.Puddling or pending and/or jetting is prohibited <br /> 2. Drip Tubing-manufactured of flexible vinyl chloride compound within 10'-0"of building or foundation walls. S H E E T: <br /> 2. Manufacturer cut sheets for all material components of legation system. conforming to ASTM D1248,Type 1,Class C,Category 4,P14 and ASTM 1. Snake pipe in trench as much as possible to allow for expansion and <br /> Highlight or circle specific model or item. D3350 for PE 1221110. contraction. Piping Under Paving: <br /> 1.05 DELIVERY,STORAGE&HANDLING 3. Fittings-As recommended by tubing manufacturer. 2. When pipe laying is not in progress,or at end of each day,close pipe ends 1. Provide for a minimum cover of 24 inches between the top of the pipe and the bottom of the <br /> with tight plug or cap.(Perform work in accordance with good practices aggregate base for all pressure and non-pressure piping <br /> Deliver,unload,store and handle materials,packaging,bundling,products,in prevailing in piping trades). installed under asphalt concrete or concrete paving. PAGE: <br /> dry,weatherproof condition in manner to prevent damage,breakage, 4. Drip Valve Assembly-Type and size shown on drawings. <br /> deterioration,intrusion,ignition,and vandalism.Deliver is original unopened 3. Coordinate pressure supply line installation with required bedding 2. Piping shall be bedded with construction grade sand or squeegee-6 9 O F 9 <br /> packaging containers prominently displaying manufacturer name,volume, a.Wye Strainer-Plastic/Fiberglass construction with 150 mesh nylon operations. inches below pipe to 6 inches above pipe and width of excavation. <br /> quantity,contents,instructions,and conformance no local,state and federal screen and blow out assembly, <br /> law. 4. Stake all above grade PVC piping per details. we®o py <br />