latest plumbing

8/10/2019 latest plumbing

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Contents

1. Part 1 - General Provisions ........................................................................ 1

2. Part 2 - Products ......................................................................................... 3

3. Part 3 - Identification and Approval of Materials .................................... 6

4. Part 4 - Substitution and Testing of Materials .......................................... 65. Part 5 - Soil, Waste, Drainage and Vent Pipes ......................................... 7

6. Part 6 - Water Distribution System ........................................................... 9

7. Part 7 - Excavation, Pipe Laying and Backfilling .................................... 9

8. Part 8 - Miscellaneous ............................................................................. 10

9. Part 9 - Site Plumbing Utilities ................................................................ 11

10. Part 10 - Test and Disinfection ................................................................ 13

11. Part 11 - Cleaning ..................................................................................... 16

12. Part 12 - Painting and Protection ............................................................ 16

13. Part 13 - Color Code for Exposed Pipes ................................................. 16

14. Part 14 - Warranty and " As Built" Plans ............................................... 17

15. Part 15 - Responsibility ............................................................................ 17

Technical Specification

Plumbing


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Technical Specifications

Page 1 of 17 PLUMBING SPECIFICATIONS

SECTION15400PLUMBING SPECIFICATION

PART 1 GENERAL PROVISION

1.01 SUMMARY

A. The General Conditions apply to all work under this section ofthe Specifications.

1.02 SCOPE OF WORK

A. Unless otherwise specified, the CONTRACTOR shall furnish allmaterials, tools, equipment, apparatus, appliances, accessories,

transportation, labor and supervision required for the completeinstallation and testing of the Plumbing Systems ready for use inaccordance with the best practice of the Plumbing Trade aslisted herein but not limited to the following:

1. The CONTRACTOR is required to refer to allarchitectural, structural, mechanical, fire protection andelectrical plans and investigate all possible interferenceand conditions affecting his work.

2. All work shall comply with the pertinent provision of the

Plumbing Code of the concerned city, the Code ofSanitation of the Phil., and/or National Plumbing Code ofthe Philippines.

3. Tapping from an existing main pipe of the buildingdistribution system.

4. Water supply and distribution system for the building,including supply and installation of water tank and pumpspiping.

5. All building sanitary drains waste and venting systemsincluding floor drains, & AC drains.

6. Sewage collection and disposal system such as tappingto the existing sewage manhole /sewer line.

7. Building storm drainage system including deck roofdrains, canopy drains, and plant boxes drains.

8. Building storm drains and collection system including

peripheral collector line into storm manhole or sump pitsand up to existing storm drains.


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9. Testing for leakage of all water supply and distributionsystem, drains, waste, sewer and venting system pluspressure testing and disinfection of the water supply anddistribution system.

10. Test run of transfer, booster & sump pumps and otherequipment under Plumbing Works.

11. Securing of all permits and licenses as required to includewater connection.

12. Excavation and backfilling in connection with the workshall be included.

13. Preparation and submittal of two (2) sets of as built plans.

14. Furnish of written one (1) year warranty on the plumbingsystem.

1.03 NOTES ON DRAWINGS:

A. The Drawings show the general arrangement of all pipings. However,where local and/or actual conditions at the jobsite necessitate adeviation or re-arrangement, the Contractor shall prepare and submitthe new arrangement for the Architect's or Engineer approval.

B. Small scale Drawings do not possibly indicate all offsets, fittings andother parts of the system required. The Contractor shall arrange suchwork accordingly, furnishing such fittings, traps valve and accessoriesas may be required to meet such conditions.

1.04 APPLICABLE SPECIFICATION CODES, ORDINANCES, PERMITS &FEES

A. The work covered in this contract is to be installed according to the

specs. Codes, ordinances and requirements of the followings:

1. National Plumbing Code2. The Code on Sanitation of the Philippines3. National Pollution Control Commission4. Ordinances of concerned city or municipality

B. All construction permits and fees required for the work shall beobtained by and at the expense of the contractor. The contractor shallfurnish the Owner final certificates of inspection after the completion ofthe work.


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1.05 WORKMANSHIP & COORDINATION WITH TRADES:

A. All work shall be performed in first class and neat workmanship bypersons skilled in their trades and such persons and their work shall be

satisfactory to the Engineer.

B. The CONTRACTOR is required to refer to the General Conditions andto all architectural, structural, electrical, mechanical and fire protectionplans and specifications and shall investigate all possible interferenceand conditions affecting his work.

PART 2 - PRODUCTS

2.01 GENERAL

A. Except as specified, the CONTRACTOR shall submit for the Engineer'sapproval, four (4) copies of a complete list of manufacturer's names ofall equipment and materials he proposes to use, within thirty (30) daysafter award of contract.

B. The CONTRACTOR shall assume the cost of and the entireresponsibility for any change in the work as shown on contractdrawings which may be occasioned by approval of materials other thanthose specified.

2.02 PIPES AND FITTINGS SCHEDULE:

A Cold Water Lines - shall be Polypropylene Random Pipe, PPR Pipe PN16.

B Sewer line - shall be Polyvinyl Chloride (PVC) pipe, series 1000 II highImpact.

C Vent Pipe - shall be polyvinyl chloride (PVC) pipe, series 600.

D. Downspouts - shall be polyvinyl chloride (PVC) pipe, series 1000 II.

E. Storm Drainage Lines - shall be polyvinyl chloride (PVC) pipe, series1000 II or reinforced concrete pipe (RCP).

2.03 VALVES

A. Gate Valve - 50mm & larger, shall be rising stem iron body with bronzetrim, flanged connection, min., of 150 psig working pressure. 50mm &smaller, shall be non-rising stem, all bronze, female threaded, min. of150 psig working pressure.


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B. Check Valve - 50mm & larger shall be iron body with bronze trim,flanged connection, min. of 150 psig working pressure. 50mm &smaller same except female threaded connection.

C. Float Valve - shall be the float & lower type globe valve, single seated-tight closing, bronze or iron material, flanged connection, with float.

2.04 OTHER MATERIALS

A. Drains

1. Roor/Deck Drain/Parapet Drain as per approvedmaterial.

2. Scupper Drain (Tank Drain)as per approved material.

3. Floor Drain for Toilets (For Second Floor & Up)as perapproved material

4. Floor Drain for Toilets (For Ground Floor only) as perapproved material.

5. Canopy Drain - as per approved material.

6. Area Drain Grating Coveras per approved material.

B. Hose Bibbs - 20mm standard hose connection, male tape-red threads,polished chromium plated.

C. Outdoor Pipe Lines and Appurtenances:

1. Concrete Drain Pipes (CDP) / Reinforced Concrete Drain Pipes(RCDP) - as per Manufacturers Standards.

2. Thrust Blocks - 140 kg/sq. c.m. reinforced concrete.

3. Area-Drain-Catch Basin - 140 kg/sq., reinforced concrete.

4. Drainage Junction Boxes - 140 kg/sq. c.m. reinforced concretewith pre-cast reinforced concrete cover.

5. Cistern - 210 kg/sq. c.m. reinforced concrete

2.05 JOINTING

A. Flanged Joint Gasketas per approved material

B. Screwed Joints - U.S. Federal Specifications GG-P-251.


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C. PVC Pipes and Fittings - PVC cement or as per the Manufacturersrecommendations.

D. Cast Iron Soil Pipes (B&S) - Oakum and lead (99% purity).

E. Dissimilar Pipes - Adaptor fittings shall be used.

F. Concrete Drain Pipe - Cement mortar.


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PART 3 IDENTIFICATION & APPROVAL OF MATERIALS

A. Each length of pipe, fittings, traps, fixtures, and device used inthe Plumbing system shall have cast, stamped or marked on it,the manufacturer's trade mark or name, the weight, type and

classes of product when so required by the Standard.

B. Within thirty (30) days after award of the contract, theCONTRACTOR shall submit for the Architect's approval, thenames of suppliers and materials proposed including tradenames and/or samples of the materials if deemed necessary.

PART 4 SUBSTITUTIONS & TESTING OF MATERIALS:

A. Materials intended to be substituted for those originally specified shall

be accepted only after a formal request for substitution, accompaniedby:

1. Reason for substitutions;

2. Certificate of test indicating quality, compared to those originallyspecified.

3. Cost comparisons with material originally specified. Requestsshall be submitted to the Architect for evaluation at least 15working days before installation of subject materials is due.

B. Cost of testing of materials, whether on originally specified items or onsubstitutions, shall be to the account of the CONTRACTOR.

C. Results of tests shall be submitted to the Architect for evaluation atleast 15 days before the material is due for installation on the job.

PART 5 SOIL, WASTE, DRAIN AND VENT PIPES:

5.01 GENERAL

A. Underground soil and waste pipes and fittings shall be Polyvinyl Chloride(PVC). Soil & waste pipes above ground shall be Polyvinyl chloride(PVC) Vent pipes shall be polyvinyl chloride (PVC) pipe. Fittings forpipings above ground shall be drainage pattern. Fitting on all dry ventsshall be polyvinyl chloride (PVC) pipe. All stacks shall be PVC pipes

B. All soil and drainage pipes shall be pitched 6mm per 300mm but in nocase flatter than 3mm per 300mm.


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5.02 SUPPORTS

A. Horizontal lines shall be supported by well secured length heavy dutystrap hangers or floor chairs as required. Vertical lines shall be secured

strongly by hooks to the building frame and suitable bracket or chairsshall be provided at the floors from which they start.

B. Soil pipes in trenches under the ground shall be laid true to line andgrade on a stable and suitably prepared foundation, each section of thepipe being properly bedded.

C. In soft ground liable to settlement, a gravel base 300mm deep andtwice the width of the pipe shall be rolled or tamped. Backfilling shall becarefully placed and tamped for the purpose, in such a manner that thepipe lines or connections are not disturbed.

5.03 TRAPS

A. Every plumbing fixtures shall be separately trapped by a vented watersealed trap as close to the fixture outlets as the conditions allow, but inno case at a distance greater than 600mm. In case of the upper or theonly fixture on a soil pipe extended full size through the roof, a ventshall not be required when said fixture has its center stack. Traps shallbe of the same diameter as the waste pipes from the fixtures whichthey shall serve, all traps shall have a water seal of at least 32millimeters with a brass thumbscrew cleanout at the bottom of the seal.

5.04 VENT

A. Vent shall be taken from the crown of the fixtures, except for watercloset traps, in which case, the branch line shall be vented below thetrap and above all small waste inlets, so connected as to preventobstructions. Each vent pipe shall be run separately above the fixturesinto the adjacent soil pipes, a distance not more than 1.50 meters. Ifmore than this distance, the vent shall run independently through theroof.

B. A vent line shall be wherever practicable, direct extension of a soil orwaste line.

C. Main vent riser at 4.5 meters long or more shall be connected at thefoot with the main water or soil pipes below the lowest vent outlet witha forty five degrees (45) connection.

D. All vertical soil or vent pipes shall be carried up at least 600mm abovethe roof of the building and the open side ends are to be entirely andsecurely covered with ga.16 mesh copper cloth.


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E. Vent pipes in roof spaces shall be run as close as possible to the underside of roof with horizontal piping pitched down to stacks withoutforming traps. Where an end or circuit vent pipe from fixtures it shall beconnected into the main vent or vent stack.

5.05 ROUGHING-IN

A. Roughing-in for pipes and fixtures shall be carried along with thebuilding construction. Correctly locate openings of proper sizes whererequired in the walls and floors for the passage of pipes. All items to beembedded in concrete shall be thoroughly cleaned and free from allrust, scale and paint.

5.06 FITTINGS

A. All changes in pipe sizes on soil, waste and drain lines shall be madewith reducing fittings or reducers. All changes in direction shall bemade by the appropriate use of forty five degree (45) wyes, or longsweep bends, except that sanitary tees may be used on verticalstacks. Short quarter bends or elbows may be used in soil and wastelines where the change in direction is from the horizontal to the verticaland on the discharge from the water closet.

5.07 JOINTS AND CONNECTIONS

A. All joints shall be air and water tight. For joining pipes, the followingsshall be used.

1. Cast iron soil and waste pipes, bell and spigot joints caulkingwith oakum or jute and soft pig lead.

2. Galvanized wrought iron or steel pipe, screwed or threadedjoints, use sealant.

3. Lead to cast iron pipe: brass ferrule wiped on lead side andcaulked into cast iron bell.

4. Concrete pipes: bell and spigot or tongue and grooved.

5. Polyvinyl chloride (PVC) pipes, socket, type with PVC cement.

PART 6 WATER DISTRIBUTION SYSTEMS:

6.01 INSTALLATION

A. The pipings shall be extended to all fixtures, outlets and equipmentfrom the gate valves installed in the branch near the riser.


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B. Unions shall be provided where required for disconnection.

C. All pipes shall be cut accurately to measurements and shall be workedinto place without springing or facing. Care shall be taken so as not to

weaken the structural portions of the building.

D. All service pipes valves and fittings shall be kept at sufficient distancefrom work to permit finished covering not less than 15mm from suchwork or from finished covering on the different service.

E. Changes in pipes shall be made with reducing fittings.

F. Accessible Contraction - Expansion joints shall be made wherenecessary. Horizontal runs of pipe over 15m in length shall beanchored to wall or the supporting structure about midway on the run toforce expansion and contraction equally towards the ends.

PART 7 EXCAVATION, PIPE LAYING AND BACKFILLING

7.01 TRENCHES

A. Trenches for all underground pipe lines shall be excavated to therequired depths and grades. Bell holes shall be provided so that pipewill rest on well-tamped solid ground for its entire length. Where rock isencountered, excavation shall extend to a depth 150mm below the pipebottom and fill with other approved filling materials.

7.02 CONCRETE PROTECTION

All pipes except concrete pipes and cast iron pipes that will rununderground shall be protected with Class B concrete casing, aminimum of 100mm around the pipe perimeter and 250mm below thefinish grade.

7.03 MATERIALS

A. Materials for backfill shall be free of debris or big rocks. Backfill shall beplaced in horizontal layers, properly moistened and compacted to anoptimum density that will prevent excessive settlement and shrinkage.

PART 8 MISCELLANEOUS:

8.01 CLEANOUTS

A. Cleanout shall be of the same size as the pipe, the location of whichis extended to an easily accessible place.


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8.02 TRAPS

A. Every plumbing fixtures or equipment requiring connection to thedrainage system shall be equipped with a trap.

B. Each trap shall be placed as near as possible to the fixture. No fixtureshall be double-trapped.

8.03 VALVES AND HOSE BIBS

A. Valves shall be provided on all water supplies to fixture as specified.

B. Hose bibbs shall be made of brass with 15mm male inlet threadshexagon shoulders and 20mm connections.

8.04 HANGERS AND SUPPORTS

A. Horizontal runs of pipe shall be hung with adjustable wrought iron ormalleable iron pipe hangers spaced not over 3m apart, except hub andspigot soil pipes which shall have hangers spaced not over 1.52mapart and located near the hub.

B. Hangers shall have short turnbuckles or other approved means ofadjustment.

C. Inserts shall be of cast steel and shall be of type to receive a machinebolt or nut after installation.

D. Vertical runs of pipe shall be supported by wrought iron clamps, orcollars spaced not more than 9m apart.

E. Water and Vent Pipe - 65mm and larger; band type 6.4mm x 25mm flatmild steel or black iron with 15mm round rod with plates and nuts;50mm and smaller split ring type with 10mm iron rods with insertsplates; toggle bolts, clamps or expansion shield.

8.05 PIPE SLEEVES

A. Pipe sleeves shall be installed and properly secured in place at allpoints where pipes pass through masonry or concrete.

B. Pipe sleeves shall be of sufficient diameter to provide approximately6.4 mm clearance around the pipe or insulation.

C. Pipe sleeves in walls and partitions shall be of cast iron, wrought ironor steel pipe. Pipe sleeves in concrete beams or concrete slabs shallbe wrought iron or steel pipe.


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D. Where pipes pass through waterproofing membrane, the sleeves shallbe provided with an integral flange or clamping device to which aflashing shield can be soldered.

E. The space between the pipes and sleeves shall be made water tight byinserting a packed oakum gasket and filling the remaining space withpoured lead caulking thoroughly.

PART 9 SITE PLUMBING UTILITIES:

10.01 GENERAL

A. The entire site plumbing utilities system shall be laid out and installedconsistent throughout with the given slope in the plans. Pipe joints andconnections to area drains, catch basin, and junction boxes shall

possess such leak-proof and see page-proof integrity achieve with theworks called for under this particular section of the Specifications.

B. Junction boxes for storm & sanitary (sewer) drainage lines outside thebuilding shall be cast-in place reinforced concrete sections and pre-cast concrete cover.

C. Trench excavation and backfilling shall be as specified in excavation,trenching and backfilling for utility system.

D. Concrete Drainage Pipe:

1. Materials, Pipe shall be reinforced concrete pipe (300 mm dia &larger) and non-reinforced concrete pipe 250 mm dia & smallerconforming to ASTM C14- 75.

2. Installation:

a. Bedding surfaces shall be provided a firm foundation,carefully shaped true to line and grade.

b. Concrete pipe shall be laid carefully with hubs upgradeand ends fully and closely joints. Joints shall be cementmortar. Cement mortar shall consist of one part Portlandcement and 1 part clean sharp sand with only enoughwater for workability. A gasket placed around the pipe.


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The gasket shall be in one (1) piece of suitable diameter(not less than 19mm and shall be lapped at the top. Thegasket shall be saturated. With that cement before beingplaced and rammed. The joint shall be completely filled

with cement mortar and rammed thoroughly with awooden caulking tool. The joint shall then be overfilledand finished to smooth level outside.

10.02 EXCAVATION FOR STORM AND SANITARY (SEWER) DRAINAGESYSTEM

A. General: The contractor shall do all excavation of whatever substancesencountered below depth shown on drawings. Excavated materials notrequired for fill or backfill shall be removed from site as directed by theEngineer and disposed of by the Contractor. Excavation for

accessories to have 300mm minimum and 600mm maximum clearancein all side. Excavation shall not be carried below the required depth.Excess excavation below required level shall be backfilled at theContractor's expense with earth, sand, gravel, or concrete, as directedby Engineer, and thoroughly tamped. Unstable soil shall be removedand replaced with gravel or crushed stone, which shall be thoroughlytamped.

The Engineer shall determine the depth of removal of unstable soil.Ground adjacent to all excavation shall be granted to prevent waterrunning. The Contractor shall removed by pumping or other meansapproved by the Engineer any water accumulated in excavation andkeep trench unwatered until the bedding is complete.

B. Trench excavation: Banks of trenches shall be vertical. Soft materialsshall be reported to the Engineer. In rock, excavation shall be carried200mm below bottom of pipe. Loose earth or gravel shall be used forbackfill, and tamped thoroughly and rounded to receive pipe as above.

C. Rock Excavation: Rock excavation shall include removal of boulderslarger than m 3 in volume and ledge rock concrete or masonry

structures that required drilling/melting.

D. Bracing and Shoring: The Contractor shall do all bracing sheathing andshoring necessary to perform and protect all excavation as indicated onthe plans. as required for safety, as directed by the Architect, or toconform to governing laws.

10.03 TESTING

Test: Test for workmanship on utility lines shall be conducted inaccordance with the applicable utility specification before backfilling.


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10.04 BACKFILLING

A. Backfilling: After pipes have been tested and approved, backfilling shallbe done with approved materials free from large rocks or stones.

1. Trench backfill materials shall be placed evenly and carefullyaround pipe in 150mm maximum layers. Each layer shall bethoroughly and carefully rammed until 300mm of cover existsover pipe. The remainder of backfill material shall be placed,moistened and compacted. Water setting will not be permitted inclay soils. It may be required at the option of the Engineer insandy soils.

2. Trench under areas to be paved. Materials shall be placed in200mm maximum layers after filling 300mm above pipe aspreviously described. Each layer shall be thoroughly andcarefully rammed until 300mm of cover exists over pipe. Theremainder of backfill material shall be placed, moistened andcompacted. Water settling will not be permitted in clay soils. Itmay be required at the option of the Engineer in sandy soils.

3. Structures: All forms, trash, and debris shall be removed andcleared away. Approved backfill material may be fromexcavation or borrow. It shall be free from rock, lumber ordebris. Backfill material shall be placed symmetrically on all sidein 200mm maximum layers. Each layer shall be moistened andcompacted with mechanical or hand tampers. In area to paved,shall be compacted to density equal to that of adjacent materialsso that pavement can be placed immediately.

B. Maintenance. The CONTRACTOR shall refill for settlement allbackfilled areas.

C. Clean-up. The CONTRACTOR shall clean up and disposed of all

excess materials, trash, wood forms and other debris.

PART 10 TESTS AND DISINFECTION:

11.01 DRAINAGE SYSTEM TEST

A. The entire drainage and venting system shall have all necessaryopenings plugged to permit the entire system to be filled with water tothe level of the highest stack vent/or vent stack above the roof.

B. The system shall hold this water for a full thirty (30) minutes during

which time there shall be no drop more than 100mm.


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C. Each section of pipeline shall be slowly filled with water and thespecified test pressure, measured at the point of lowest elevation shallbe applied by the means satisfactory to the Architect. During the filling

of the pipe and before applying the test pressure, all air shall beexpelled from the pipe line. To accomplish this taps shall be made, ifnecessary, at point of highest elevation, and after completion of the testthe taps shall be tightly plugged unless otherwise specified. During thetest all exposed pipes, fittings, valves joints and couplings will becarefully examined. If found to have cracked or defective, they shall beremoved and replaced by the contractor with sound materials at hisown expense. The test shall be repeated until satisfactory results havebeen obtained.

11.02 PRESSURE TESTS FOR WATER LINES:

A. After the pipe have been installed, the joints completed and with jointsexposed for examination, all newly installed pipe or any valve sectiontherefore, shall be subjected to hydrostatic pressure 1 the designedworking pressure of the system or as specified by the Architect.

B. The duration of each pressure test shall be at least 10 minutes unlessotherwise specified by the Architect.

C. Each section of pipe line shall be slowly filled water and the specifiedtest pressure, measured at the point of lowest elevation shall beapplied by means of a pump connected to the pipe in a mannersatisfactory to the Architect. During the filling of the pipe in and beforeapplying the test pressure, all air shall be expelled from the pipe line.To accomplish this taps shall be made, if necessary, at point of highestelevation, and after completion of the test the taps shall be tightlyplugged unless otherwise specified.

During the test all exposed pipes, fittings, valves joints and couplingswill be carefully examined. If found to be cracked or defective, theyshall be removed and replaced by the Contractor with sound materials

at his own expense. The test shall be repeated until satisfactory resultshas been obtained.

11.03 LEAKAGE TEST FOR WATER LINES

A. Leakage test shall be conducted after satisfactory completion of thepressure and shall consist of an examination of all exposed joints forleakage as well as on overall leakage test completed pipelines.

B. The pressure to be maintained during the test shall be the designworking pressure of the system.

C. Leakage test shall be made only after a minimum of 24 hours after the


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pipe to be tested have been filled with water.

D. The duration of each leakage test shall be two hours unless otherwisespecified by the Architect.

E. Each section to the pipeline shall be slowly filled with water at specifiedpressure, measured at the points of lowest elevation shall be appliedby means of a positive displacement type pump and reservoirconnected to the Pipeline.

F. Before starting the leakage test, all air shall be expelled from the pipe.All expose pipes, fittings, valves and joints shall be examined forleakage during the test.

G. Allowable leakage rate per 100 joints per inch of Pipe Diameter at

Pressure.

---------------------------------------------------------------PRESSURE LEAKAGE RATE

---------------------------------------------------------------PSI KG/CM LITERS/HR. LITERS/HR.

---------------------------------------------------------------50 3.5 1.45 2.9075 5.3 1.75 3.50100 7.0 2.05 4.10125 8.8 2.30 4.60150 10.5 2.50 5.00200 14.0 2.90 5.80

H. No structures shall be closed until all joints have been inspected forleaks.

11.04 DEFECTIVE WORK:

A. If the inspection or test shown any defect, such defective work ormaterial shall be replaced and the test shall be repeated until

satisfactory to the Architect.

B. All repairs to piping shall be made with new materials at the expense ofthe contractor.

C. No caulking of screwed joints of holes will be accepted.

11.05 DISINFECTION OF WATER DISTRIBUTION SYSTEM AND WATERTANKS (as per AWWA C 601)

A. The entire water system shall be thoroughly flushed and disinfected

with chlorine before it is placed on operation. Water tanks shall bewashed and swabbed.


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B. Chlorination materials shall be liquid chlorine of hypoclorite as specifiedand shall be introduced into the water lines in manner approved by the

Engineer.

C. Tanks shall be thoroughly cleaned of all debris dirt or dust beforeswabbing.

D. The chlorine dosage shall be such as to provide not less than fifty partsper million (50ppm) of available chlorine.

E. Following a contact period of not less than sixteen (16) hours, theheavily chlorinated water shall be flushed from the system with cleanwater until the residual chlorine content is not greater than two tenth

(0.20 ppm). All valves in water lines being sterilized shall be openedand closed several times during the 16 hours chlorinating period.

PART 11 CLEANING

A. All exposed metal surfaces shall be free of grease, dirt or other foreignmaterials.

B. Chrome or nickel plated piping, fittings and trimmings shall be polishedupon completion.

C. All plumbing fixtures shall be properly protected from used and damageduring the construction stage. The fixture shall be cleaned to thesatisfaction of the Architect upon completion and prior to acceptance ofwork.

D. All equipment. Pipes, valves and fittings shall be cleaned of grease andsludge which may have accumulated. Any clogging, discoloration ordamage to other parts of the building due to the system shall berepaired by the Contractor.

PART 12 PAINTING AND PROTECTION:

A. All exterior of pipings to be installed in or through concrete floors andunderground shall be given one coat of acid resisting paint having abituminous base.

B. Pipe hanger supports and all of the iron work in concealed spaces shallbe painted with one coat of asphalt.

C. Expose galvanized iron pipe and fittings that are 1 mil asphalt coatedshall be given two coats of shellac prior to application of two coats or

oil paint as directed by the Architect or his authorized representative.


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PART 13 COLOR CODE FOR EXPOSED PIPES

A. All exposed pipings shall be adequately and durably identified bydistinctive colored paints as follows:

ITEM COLOR CODE

cold water pipe bluehot water pipe blue w/red band @ 1.0m O.C.storm water pipe aluminumsewage pipe blackvent pipe green

waste pipe gray

PART 14 WARRANTY & "AS-BUILT" PLANS:

A. All works, equipment and fixture shall be guaranteed by theCONTRACTOR for satisfactory service for a minimum period of one (1)year.

B. The CONTRACTOR shall submit to the Owner in reproducible formplus three (3) sets of white prints, the complete plans of the entiresystem as actually built. The cost of those shall be borne by thecontractor. Submittals of "AS-BUILT" Plans shall be conditions to finalpayment.

PART 15 RESPONSIBILITY

A. The general CONTRACTOR shall be responsible for the coordinationamong the different trades on the job in order to finish the work in theleast possible time, in strict accordance with the Plans andSpecification.

1. Throughout the construction period open ends of all installedpipe lines shall be kept closed by temporary plugs.

2. Drainage lines shall not be used to conduct dirty constructionwash water especially those with cement mixes to avoidpossible clogging.

3. A temporary fire protection system shall be provided by thecontractor during the construction operations. This is in additionto temporary fire extinguisher required.


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4. A temporary potable water supply shall be made available toconstruction workers at every floor as construction progress.

5. A temporary human extra disposal system shall be provided bythe contractor to serve the worker during the constructionperiod.

--------------- END OF SECTION --------------

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