PLUMBING NC III – TESDA COURSE MODULE

TESDA TRAINING REGULATIONS FOR PLUMBING NC III

The TESDA Course in Plumbing NC III consists of competencies that a person must achieve in installing simple and complex plumbing systems including centralized and storage type of water heater system for high-rise buildings. He/she leads, supervises and works with the team.

This Qualification is packaged from the competency map of Construction – Civil Works sub-sector.

A student who has achieved this TESDA Course in PLUMBING NC III is competent to be:

• Plumber III

PLUMBING NC III COURSE – TRAINING AND REGULATION MODULE

Course Title: PLUMBING
Level: NC III
Nominal Training Duration :

(Basic Competency) 24 hours
(Common Competency) 24 hours
(Core Competency) 200 hours

TOTAL DURATION: 248 Hours

This course is designed to equip individual with operation skills in Plumbing, such as install centralized hot, chilled and/or potable water piping system, install riser/down feed and distribution water supply system, install and connect pumps to plumbing system, perform finishing and trimming of plumbing fixtures and accessories and oversee plumbing works.

TRAINEE ENTRY REQUIREMENTS

This section specifies the qualifications of trainees including their education/experience.

• At least Grade 12 graduate
• Able to communicate orally and in writing
• Holder of National Certificate for Plumbing NC II or relevant industry experience (plumbing works) for a minimum of 3 years * in all of the following:
  • Prepare estimation of materials for single plumbing unit
  • Perform Complex Plumbing Installation and Assemblies
  • Conduct pipe leak testing
  • Perform plumbing repair and maintenance works

Note: * Certified by the employer or a Registered Plumber

This list does not include specific institutional requirements such as written entrance exam, and other that may be required of the trainees by the school or training center delivering TVET program.

COMPETENCIES REQUIRED IN PLUMBING NC III

This units of competency comprising this qualification include Basic, Common and Core Competencies.

To obtain this TESDA Course in PLUMBING NC III, all units prescribed below for this qualification must be achieved.

These units of competency comprising this qualification include the following:

UNIT CODE	CORE COMPETENCIES (200 hours)
CON712352	Install centralized hot, chilled and /or potable water piping system
CON712353	Install riser/down feed and distribution water supply system
CON712354	Install and connect pumps to plumbing system
CON712355	Perform finishing and trimming of plumbing fixtures and accessories
CON712356	Oversee plumbing works
UNIT CODE	COMMON COMPETENCIES (24 hours)
CON931201	Prepare construction materials and tools
CON311201	Observe procedures, specifications and manuals of instruction
CON311202	Interpret technical drawings and plans
CON311203	Perform mensurations and calculations
CON311204	Maintain tools and equipment
UNIT CODE	BASIC COMPETENCIES (24 hours)
500311109	Lead Workplace Communication
500311110	Lead Small Teams
500311111	Develop and Practice Negotiation skills
500311112	Solve Problems Related to Work Activities
500311113	Use Mathematical Concepts and Techniques
500311114	Use Relevant Technologies

These guidelines are set to provide the Technical Vocational Education and Training (TVET) providers with information and other important requirements to consider when designing training programs for PLUMBING NC III.

CORE COMPETENCIES

UNIT OF COMPETENCY : INSTALL CENTRALIZED HOT-, CHILLED- AND / OR POTABLE-WATER PIPING SYSTEM
UNIT CODE : CON712352

This unit covers the knowledge, skills and attitude in preparing, connecting, and installing centralized hot-, chilled- and potable-water piping system using copper pipes and fittings and other approved materials in a range of workplace settings.

1. Prepare pipes prior to assembly/installation
   • Work instructions are read and interpreted in accordance with the job requirements
   • Pipes and fittings including materials and consumables are prepared according to the prescribed procedures, tolerances and finishes consistent with job requirements
   • Tools and equipment are selected and prepared in accordance with job requirements
   • Appropriate PPE is selected in accordance with job requirements
2. Perform potable-, hot- and chilled water piping installation
   • Pipes and fittings are aligned, connected and welded consistent with job requirements
   • Pipe support/braces/insulation materials are installed according to the prescribed procedures, material specification, location and finishes consistent with job requirements
   • Proper use of tools and equipment is observed in accordance with the job requirements
   • Appropriate PPE is used in accordance with the job requirements
   • Work site is cleaned and kept in safe state and in accordance with Occupational Safety and Health Standards (OSHS)
3. Perform pipe leak testing
   • All openings in the pipe system are tightly closed except the highest opening prior to leak testing
   • Leak testing is applied after completion of roughing-ins and complete installation of pipe supports.
   • Testing apparatus is set to specified pressure rating according to testing standards.
   • Gravity or flood testing are applied to sanitary, waste, vent and storm drainage piping.
   • Pressure testing are applied to hot and cold water piping.
   • Proper use of tools and equipment is observed in accordance with manufacturer’s specifications
   • Appropriate PPE are used in accordance with job requirements
   • Work site is cleaned and kept in safe state and in accordance with OSHS

UNIT OF COMPETENCY : INSTALL RISER/DOWNFEED AND DISTRIBUTION WATER SUPPLY SYSTEM
UNIT CODE : CON712353

This unit covers the knowledge, skills and attitudes in installing/assembling riser/down-feed and distribution of water supply pipes in all types of building.

1. Fit-up joints of pipes and fittings
   • All measurements are in accordance with the piping layout/plans and specifications
   • Joints are made with strict compliance to plumbness and levelness and / or alignment in accordance with job requirements.
   • Appropriate tools and equipment’s are selected in line with job requirements
   • Appropriate PPE is selected in accordance with job requirements
   • Joints between pipes and fittings are properly cleaned and fitted-up for a leak free connections.
   • Dry fittings are performed in accordance with job requirements.
   • All valves are tagged and identified according to its usage and specifications.
   • Pipe supports and braces are installed rigidly and secured in accordance with the approved plans
   • Erect scaffoldings and flat forms according to job requirements and safety standards
2. Perform precise pipe cutting and connection
   • All measurements are in accordance with the piping layout/plans and specifications
   • Threaded connections are done in line with the piping table and approved specification
   • Teflon tape or any other type of jointing materials are used to ensure the water tightness of the joint according to job description.
   • Testing is applied after completion of installation in accordance with the job requirements
   • Appropriate PPE are used in accordance with job requirements
   • Materials tools and equipment are selected in accordance to job requirements
3. Make piping connections using fussed, butt and flange
   • PP-R pipes and fittings connections are fitted and fussed according to standard practice
   • Flange is fully welded according to standard practice
   • HDPE pipes and fittings connections are fitted according to standard practice
   • Appropriate PPE are used in accordance with job requirements
   • Tools and equipment are selected according to job requirements
   • Scaffoldings and platforms are erected according to job requirements and safety standards
4. Fabricate & install pipe hangers, sway braces and supports
   • Pipe hangers, sway braces and supports are fabricated and installed according to standards and specifications.
   • Appropriate tools and equipment’s are selected in line with job requirements
   • Pipes and fittings supports are properly anchored according to job requirements
   • Erect scaffoldings and flat forms according to job requirements and safety standards

UNIT OF COMPETENCY : INSTALL AND CONNECT PUMPS TO PLUMBING SYSTEM UNIT CODE : CON712354

This unit covers the knowledge, skills and attitudes in installing and connecting pumps to plumbing system.

1. Mount and install pumps and accessories
   • Location of pump mounting pad are identified and selected for installation of pump and accessories according to plan.
   • Rating and capacity of pumps and accessories are checked in accordance with the application and uses.
   • Pump Operation and maintenance manual are read and interpreted according to manufacturer’s specifications.
   • Power requirements of pumps and accessories are identified in accordance with the voltage requirements.
   • Appropriate PPE are selected and used in accordance with the job requirements.
   • Appropriate tools and equipment’s are selected in line with job requirements
2. Identify and select capacity and rating of valves
   • Capacity and rating of valves are identified and selected in line with pump rating capacity.
   • Normally open or closed gate valves are marked during system operation.
   • Operation and maintenance manual of each valve are identified according to each application.
3. Test and commission pumps and accessories
   • All pumps and accessories are installed in accordance with approved plan.
   • Power requirements of pumps and accessories are checked and verified in accordance with the application.
   • Testing and commissioning of pumps and accessories are strictly followed in accordance with the operation and maintenance manual.
   • Appropriate tools are selected in line with job requirements

UNIT OF COMPETENCY : PERFORM FINISHING AND TRIMMINGS OF PLUMBING FIXTURES AND ACCESSORIES UNIT CODE : CON712355

This unit covers the knowledge, skills and attitudes in performing the finishing and trimming of various plumbing fixtures and accessories.

1. Determine stub outs for plumbing fixture
   • Location and roughing-in stub-out is determined within the scope of the working plan.
   • Plumbing fixtures are mounted upon approval of person in charge.
   • Finishing tools and equipment are prepared in accordance with the job requirements
   • Plumbing fixtures are listed and selected in accordance with finishing schedules.
   • Reports are prepared and submitted to person in charge in accordance to job requirements.
2. Prepare plumbing fixtures
   • Plumbing fixtures are prepared according to the prescribed requirements, steps and procedures.
   • Proper use of finishing tools and equipment is observed in accordance to manufacturer’s instruction manual.
   • Plumbing fixtures and accessories are checked and verified according to job requirements.
   • Reports are prepared and submitted to person in charge in accordance to job requirements.
3. Finish and trim plumbing fixtures
   • Plumbing fixtures are mounted and trimmed according to manufacturer’s instruction manuals.
   • Finishing tools and equipment are selected and used in accordance with job requirements
   • Testing and flushing is conducted in accordance with the job requirements
   • Housekeeping is performed in accordance with OSHS
   • Used appropriate PPE uniform

UNIT OF COMPETENCY : OVERSEE PLUMBING WORKS
UNIT CODE : CON712356

This unit deals with knowledge, skills and attitudes in the oversight or supervision of the plumbing works.

1. Check preparation undertaken prior plumbing works
   • Preparatory activities are checked based on workplace procedures and job requirements
   • Tools and equipment are checked before start of work
   • Safety of manpower is observed and ensured in accordance with job requirements
2. Check compliance with occupational work and safety standards
   • All measurements, joints, appropriate PPE, materials, tools and equipment are checked in accordance with occupational health and safety guidelines
   • All valves, pipe supports, hangers and sway braces are checked for plumbness in accordance with work standards
   • Safety of manpower is observed in accordance with job requirements
3. Check quality of work performance
   • Location of pump, ratings, capacity and power requirements are determined, and evaluated in accordance with manufacturer’s manual.
   • Pump operation, maintenance manual, and appropriate tools and equipment are checked in accordance with work standards.
   • Safety of manpower is observed in accordance with job requirements

COMMON COMPETENCIES

UNIT OF COMPETENCY: PREPARE CONSTRUCTION MATERIALS AND TOOLS
UNIT CODE : CON931201

This unit covers the knowledge, skills and attitudes on identifying, requesting and receiving construction (plumbing) materials and tools in various workplace settings.

1. Identify materials
   • Materials are listed as per job requirements
   • Quantity and description of materials conform with the job requirements
   • Tools and accessories are identified according to job requirements
2. Requisition materials
   • Materials and tools needed are requested according to the list prepared
   • Request is done as per company standard operating procedures (SOP)
   • Substitute materials and tools are provided without sacrificing cost and quality of work
3. Receive and inspect materials
   • Materials and tools issued are inspected as per quantity and specification
   • Tools, accessories and materials are checked for damages according to enterprise procedures
   • Materials and tools are set aside to appropriate location nearest to the workplace

UNIT OF COMPETENCY: OBSERVE PROCEDURES, SPECIFICATIONS AND MANUALS OF INSTRUCTIONS
UNIT CODE : CON311201

This unit covers the knowledge, skills and attitudes on identifying, interpreting, applying services to specifications and manuals and storing manuals.

1. Identify and access specification/manuals
   • Appropriate manuals are identified and accessed as per job requirements
   • Version and date of manual are checked to ensure that correct specification and procedures are identified
2. Interpret manuals
   • Relevant sections, chapters of specifications/manuals are located in relation to the work to be conducted
   • Information and procedure in the manual are interpreted in accordance with industry practices
3. Apply information in manual
   • Manual is interpreted according to job requirements
   • Work steps are correctly identified in accordance with manufacturer’s specification
   • Manual data are applied according to the given task
   • All correct sequencing and adjustments are interpreted in accordance with information contained on the manual or specifications
4. Store manuals
   • Manual or specification is stored appropriately to prevent damage, ready access and updating of information when required in accordance with company requirements

UNIT OF COMPETENCY: INTERPRET TECHNICAL DRAWINGS AND PLANS
UNIT CODE : CON311202

This unit covers the knowledge, skills and attitudes in analyzing and interpreting symbols, data and work plan based on the required performance standards.

1. Analyze signs, symbols and data
   • Technical plans are obtained according to job requirements
   • Signs, symbols and data are identified according to job specifications
   • Signs symbols and data are determined according to classification or as appropriate in drawing
2. Interpret technical drawings and plans
   • Necessary tools, materials and equipment are identified according to the plan
   • Supplies and materials are listed according to specifications
   • Components, assemblies or objects are recognized as required
   • Dimensions are identified as appropriate to the plan
   • Specification details are matched with existing/available resources and in line with job requirements
   • Work plan is drawn following the specifications
3. Apply freehand sketching
   • Where applicable, correct freehand sketching is produced in accordance with the job requirements

UNIT OF COMPETENCY: PERFORM MENSURATIONS AND CALCULATIONS
UNIT CODE : CON311203

This unit covers the knowledge, skills and attitudes on identifying and measuring objects based on the required performance standards.

1. Select measuring instruments
   • Object or component to be measured is identified, classified and interpreted according to the appropriate regular geometric shape
   • Measuring tools are selected/identified as per object to be measured or job requirements
   • Correct specifications are obtained from relevant sources
   • Appropriate measuring instruments are selected according to job requirements
   • Alternative measuring tools are used without sacrificing cost and quality of work
2. Carry out measurements and calculations
   • Accurate measurements are obtained according to job requirements
   • Alternative measuring tools are used without sacrificing cost and quality of work
   • Calculation needed to complete work tasks are performed using the four basic process of addition (+), subtraction (-), multiplication (x) and division (/) including but not limited to: trigonometric functions, algebraic computations
   • Calculations involving fractions, percentages and mixed numbers are used to complete workplace tasks
   • Numerical computation is self-checked and corrected for accuracy
   • Instruments are read to the limit of accuracy of the tool
   • Systems of measurement identified and converted according to job requirements/ISO
   • Workpieces are measured according to job requirements

UNIT OF COMPETENCY: MAINTAIN TOOLS AND EQUIPMENT
UNIT CODE : CON311204

This unit covers the knowledge, skills and attitudes on checking condition, performing preventive maintenance and storing of tools and equipment based on the required performance standards.

1. Check condition of tools and equipment
   • Materials, tools and equipment are identified according to classification and job requirements
   • Non-functional tools and equipment are segregated and labeled according to classification
   • Safety of tools and equipment are observed in accordance with manufacturer’s instructions
   • Condition of PPE are checked in accordance with manufacturer’s instructions
2. Perform basic preventive maintenance
   • Appropriate lubricants are identified according to types of equipment
   • Tools and equipment are lubricated according to preventive maintenance schedule or manufacturer’s specifications
   • Measuring instruments are checked and calibrated in accordance with manufacturer’s instructions
   • Tools are cleaned and lubricated according to standard procedures
   • Defective instruments, equipment and accessories are inspected and replaced according to manufacturer’s specifications
   • Tools are inspected, repaired and replaced after use
   • Work place is cleaned and kept in safe state in line with OHSA regulations
3. Store tools and equipment
   • Inventory of tools, instruments and equipment are conducted and recorded as per company practices
   • Tools and equipment are stored safely in appropriate locations in accordance with manufacturer’s specifications or company procedures

BASIC COMPETENCIES

The BASIC COMPETENCIES refer to non-technical skills (knowledge, skills and attitudes) that everybody will need in order to perform satisfactorily at work and in society and are considered portable and transferable irrespective of jobs and industrial settings.

UNIT OF COMPETENCY : LEAD WORKPLACE COMMUNICATION
UNIT CODE : 500311109

This unit covers the knowledge, skills and attitudes required to lead in the dissemination and discussion of ideas, information and issues in the workplace.

1. Communicate information about workplace processes
   • Appropriate communication method is selected
   • Multiple operations involving several topics areas are communicated accordingly
   • Questions are used to gain extra information
   • Correct sources of information are identified
   • Information is selected and organized correctly
   • Verbal and written reporting is undertaken when required
   • Communication skills are maintained in all situations
2. Lead workplace discussions
   • Response to workplace issues are sought
   • Response to workplace issues are provided immediately
   • Constructive contributions are made to workplace discussions on such issues as production, quality and safety
   • Goals/objectives and action plan undertaken in the workplace are communicated
3. Identify and communicate issues arising in the workplace
   • Issues and problems are identified as they arise
   • Information regarding problems and issues are organized coherently to ensure clear and effective communication
   • Dialogue is initiated with appropriate personnel
   • Communication problems and issues are raised as they arise

UNIT OF COMPETENCY : LEAD SMALL TEAMS
UNIT CODE : 500311110

This unit covers the knowledge, skills and attitudes to lead small teams including setting and maintaining team and individual performance standards.

1. Provide team leadership
   • Work requirements are identified and presented to team members
   • Reasons for instructions and requirements are communicated to team members
   • Team members’ queries and concerns are recognized, discussed and dealt with
2. Assign responsibilities
   • Duties, and responsibilities are allocated having regard to the skills, knowledge and aptitude required to properly undertake the assigned task and according to company policy
   • Duties are allocated having regard to individual preference, domestic and personal considerations, whenever possible
3. Set performance expectations for team members
   • Performance expectations are established based on client needs and according to assignment requirements
   • Performance expectations are based on individual team members duties and area of responsibility
   • Performance expectations are discussed and disseminated to individual team members
4. Supervised team performance
   • Monitoring of performance takes place against defined performance criteria and/or assignment instructions and corrective action taken if required
   • Team members are provided with feedback, positive support and advice on strategies to overcome any deficiencies
   • Performance issues which cannot be rectified or addressed within the team are referenced to appropriate personnel according to employer policy
   • Team members are kept informed of any changes in the priority allocated to assignments or tasks which might impact on client/customer needs and satisfaction
   • Team operations are monitored to ensure that employer/client needs and requirements are met
   • Follow-up communication is provided on all issues affecting the team
   • All relevant documentation is completed in accordance with company procedures

UNIT OF COMPETENCY : DEVELOP AND PRACTICE NEGOTIATION SKILLS
UNIT CODE : 500311111

This unit covers the skills, knowledge and attitudes required to collect information in order to negotiate to a desired outcome and participate in the negotiation.

1. Plan negotiations
   • Information on preparing for negotiation is identified and included in the plan
   • Information on creating non verbal environments for positive negotiating is identified and included in the plan
   • Information on active listening is identified and included in the plan
   • Information on different questioning techniques is identified and included in the plan
   • Information is checked to ensure it is correct and up-to- date
2. Participate in negotiations
   • Criteria for successful outcome are agreed upon by all parties
   • Desired outcome of all parties are considered
   • Appropriate language is used throughout the negotiation
   • A variety of questioning techniques are used
   • The issues and processes are documented and agreed upon by all parties
   • Possible solutions are discussed and their viability assessed
   • Areas for agreement are confirmed and recorded
   • Follow-up action is agreed upon by all parties

UNIT OF COMPETENCY : SOLVE PROBLEMS RELATED TO WORK ACTIVITIES
UNIT CODE : 500311112

This unit of covers the knowledge, skills and attitudes required to solve problems in the workplace including the application of problem solving techniques and to determine and resolve the root cause of problems.

1. Identify the problem
   • Variances are identified from normal operating parameters; and product quality
   • Extent, cause and nature are of the problem are defined through observation, investigation and analytical techniques
   • Problems are clearly stated and specified
2. Determine fundamental causes of the problem
   • Possible causes are identified based on experience and the use of problem solving tools / analytical techniques.
   • Possible cause statements are developed based on findings
   • Fundamental causes are identified per results of investigation conducted
3. Determine corrective action
   • All possible options are considered for resolution of the problem
   • Strengths and weaknesses of possible options are considered
   • Corrective actions are determined to resolve the problem and possible future causes
   • Action plans are developed identifying measurable objectives, resource needs and timelines in accordance with safety and operating procedures
4. Provide recommendation/s to manager
   • Report on recommendations are prepared
   • Recommendations are presented to appropriate personnel.
   • Recommendations are followed-up, if required

UNIT OF COMPETENCY : USE MATHEMATICAL CONCEPTS AND TECHNIQUES
UNIT CODE : 500311113

This unit covers the knowledge, skills and attitudes required in the application of mathematical concepts and techniques.

1. Identify mathematical tools and techniques to solve problem
   • Problem areas are identified based on given condition
   • Mathematical techniques are selected based on the given problem
2. Apply mathematical procedure/solution
   • Mathematical techniques are applied based on the problem identified
   • Mathematical computations are performed to the level of accuracy required for the problem
   • Results of mathematical computation is determined and verified based on job requirements
3. Analyze results
   • Result of application is reviewed based on expected and required specifications and outcome
   • Appropriate action is applied in case of error

UNIT OF COMPETENCY : USE RELEVANT TECHNOLOGIES
UNIT CODE : 500311114

This unit of competency covers the knowledge, skills, and attitude required in selecting, sourcing and applying appropriate and affordable technologies in the workplace.

1. Study/select appropriate technology
   • Usage of different technologies is determined based on job requirements
   • Appropriate technology is selected as per work specification
2. Apply relevant technology
   • Relevant technology is effectively used in carrying out function
   • Applicable software and hardware are used as per task requirement
   • Management concepts are observed and practiced as per established industry practices
3. Maintain/enhance relevant technology
   • Maintenance of technology is applied in accordance with the industry standard operating procedure, manufacturer’s operating guidelines and occupational health and safety procedure to ensure its operative ability
   • Updating of technology is maintained through continuing education or training in accordance with job requirement
   • Technology failure/ defect is immediately reported to the concern/responsible person or section for appropriate action

DEFINITION OF TERMS

• Certification – Refers to the process of verifying and validating competencies of a person through assessment.
• Competency – Is the application of knowledge, skills and attitudes to perform work activities to the standard expected in the workplace.
• Element – Refers to the building blocks of a unit of competency. It describes in outcome terms the functions that a person who works in a particular area of work is able to perform.
• Evidence Guide – It is a guide for assessment that provides information on critical aspects of competency, underpinning knowledge, underpinning skills, resource implications, context of assessment and assessment method.
• Level – Refers to the category following the level of difficulty and complexity of skills and knowledge required to do the job.
• Performance Criteria – Is an evaluative statement that specifies what is to be assessed and the required level of performance.
• Philippine Qualifications Framework – A quality-assured national system for the development, recognition and award of qualifications based on standards of knowledge, skills and values acquired in different ways and methods by learners and workers in the country
• Pipe – Refers to a cylindrical conduit or conductor conforming to the particular dimensions commonly known as “pipe size” and is denoted by its interior diameter or I.D.
• Plumbing appliance – Refers to any one of a special class of device or equipment intended to perform a special plumbing function. Its operation and/or control may be dependent upon one or more energized components, such as motors, controls, heating elements and pressure-temperature-sensing elements. Such device or equipment may operate automatically through one or more of the following actions; a time cycle, a temperature range, a pressure range, a measured volume or weight; or the device or equipment may be manually adjusted or controlled by the user or operator.
• Plumbing appurtenance – It is a manufactured device or a prefabricated assembly or an on-the-job assembly of component parts, and serve as adjunct to the basic piping system and plumbing fixtures. An appurtenance demands no additional water supply nor does it add any discharge load to fixture or the drainage system. It performs some useful functions in the operation, maintenance, servicing, economy or safety of the plumbing system.
• Plumbing – It is the art and technique of installing pipes, fixtures and other apparatuses in buildings for bringing in the supply, liquids, substances and/or ingredients and removing them; and such water, liquid and other carried-wastes hazardous to health, sanitation, life, property; also the pipes and fixtures after installation i.e., the plumbing system.
• Plumbing fixtures –
  Are approved-type installed receptacles, devices or appliances supplied with water or receive liquid or liquid-borne wastes and discharge such wastes into the drainage system to which they may be directly or indirectly connected. Industrial or commercial tanks, vats and similar processing equipment are not plumbing system fixtures, but may be connected to or discharged into approved traps or plumbing fixtures as provided for in this Code.
• Plumbing system – Refers to all potable water supply and distribution pipes, all plumbing fixtures and traps, all sanitary and storm drainage systems; vent pipes, roof drains, leaders and downspouts; and all building drains and sewers, including their respective joints and connections; devices, receptacles, and appurtenances within the property; water lines in the premises; potable , tap, hot and chilled water pipings; potable water treating or using equipment; fuel gas piping; water heaters and vents for same.
• Plumbing unit – Refers to a minimum standard quantity of plumbing fixtures that discharge wastes into a plumbing installation including;
  • one (1) water meter,
  • one (1) water closet,
  • one (1) lavatory,
  • one (1) shower head and drain for a bathtub or shower stall,
  • one (1) kitchen sink,
  • one (1) laundry tray and
  • three (3) floor drains and
  • four (4) faucets/hose bibb.
• Potable water – Is a water satisfactory for drinking, culinary and domestic purposes and meets the requirements of the Philippine National Standards for Drinking Water.
• Pressure – Is a normal force exerted by a homogenous liquid or gas, per unit of area on the wall of the container.
• Qualification – Refers to the national certificate issued by the TESDA or its accredited industry organizations in recognition that a person has achieved competencies relevant to a trade or industry.
• Range of Variable – It describes the circumstances or context in which the work is to be performed.
• Unit of Competency – Refers to a discrete aspect of work, which would normally be performed by only one person.
• Unplasticized Polyvinyl Chloride Conduit (UPVC) – Refers to a non-metallic conduit into which electrical wire may be
  drawn and with an outside diameter sufficiently different from
  that of metallic conduit.
• Multiple plumbing system -a battery of fixture; composed of two or more plumbing system
  connections
• Centralized multiple plumbing hot water – is a system that supplies or distribute hot water to fixtures that requires hot water using storage type water heater and boiler
• High-rise building – multi-storey building minimum of 15 storey and above
• Medium-rise building – multi – level storey building from ground floor to 15 storey building