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Drainlaying training

what's new and what's reviewed

What's included in this part of the project

This part of the development and review includes:

  • the review of the New Zealand Certificate in Drainlaying
  • the review and development of the unit standards listed in the table below
  • the development of guidance information to support the design of programmes that will meet industry and ākonga (learner) needs.

The process we followed

We worked closely with our Technical Advisory Group to update and develop the qualification and standards. The outcomes have also been informed by our Strategic Reference Group, as well as extensive consultation carried out with the sector to identify opportunities to improve training for the PGD sector.

The new qualification graduate profile outcomes (GPOs) have been reviewed and align to the PGD Board’s recently consulted and updated competencies.

We're seeking feedback about

  • the updated qualification
  • the standards we’ve reviewed (the ones with hyperlinks in the table below)
  • the guidance information that will support the design of programmes.

How this information is presented

We’re presenting this information to show how the proposed qualification outcomes, standards and supporting information fit together to form the framework for the updated apprenticeship. 

The information in the table below adds detail to the framework: 

  • Proposed Graduate Profile Outcomes – these high-level statements describe what a graduate of the qualification will know, do and be. These have been updated to reflect the updated programme framework. 
  • Proposed unit standards – these are the standards ākonga (learners) will need to achieve to meet the graduate outcomes, and ultimately the qualification. We’ve updated existing standards to ensure they reflect current knowledge and skills. We’ve also developed new standards where required. 
  • Indicative content – this is information about key knowledge and skills related to the unit standard. 
  • Learning guidance – this is information about key learning that industry experts think ākonga should be exposed to during their apprenticeship to support their skills and practical understanding. This could happen at work or through structured learning opportunities like block courses. 
  • Assessment guidance – this is information about how industry expects this unit standard to be assessed. 

View the full qualification document.

Download a summary of the key changes to Drainlaying qualification and standards.

Download a summary of the key changes to Core PGD standards.

New Zealand Certificate in Drainlaying

Proposed Graduate Profile OutcomesProposed unit standardsIndicative contentLearning guidanceAssessment guidance
Apply practical knowledge to the installation, commissioning, and maintenance of foul water drainage systems.30530
Demonstrate knowledge of the installation and maintenance of foul water drains
This unit standard covers legislation, underpinning concepts and principles as they apply to foul water drains, sewer gas interceptor traps and materials used in foul water drainage systems.It is expected that learners will be given the opportunity to practice calculating gradients, sizing for vents and drains and identifying correct placement of rodding eyes and inspection points.Online or Block Course
NewDrain1
Maintain drainage systems
This unit standard covers maintenance for drainage systems and drainlaying structures. This can include foul water drainage systems or stormwater drainage systems.

Assessment for this unit standard requires learners to perform regular/preventative maintenance on drainage systems, maintain drainage structures; and repair or alter pipework for drainage systems,
It is expected that learners will have had the opportunity to practice these tasks multiple times prior to assessment.At work or Block Course
NewDrain3
Install foul water drains
Assessment for this unit standard requires learners to install three foul water drainage systems, which must include at a minimum - three fittings including an access point, a gully, a WC connection, and a separate vent.

As part of this unit standard learners must install a minimum of one inspection point and one rodding point.
It is expected that learners will have had the opportunity to practice these tasks multiple times prior to assessment.At work or Block Course
30534
Demonstrate knowledge of wet and dry inspection chambers
Assessment for this unit standard requires learners to be able to explain the purpose of wet and dry inspection chambers as well as key features and installation methods.At work or Block Course
30535
Install inspection chambers
Assessment for this standard requires learners to install wet inspection chambers. Chamber types may include pre-cast concrete, in-situ, plastic, in-line inspection chambers, drop inspection chambers.It is expected that learners will have had the opportunity to practice these tasks multiple times prior to assessment.At work or Block Course
Apply practical knowledge to the installation, commissioning, and maintenance of stormwater drainage systems.30577
Demonstrate knowledge of the installation and maintenance of stormwater handling systems
This unit standard covers legislation and underpinning concepts and principles as they apply to the installation and maintenance of stormwater handling systems.
Stormwater retention and detention systems.
Onsite stormwater disposal systems.
Positioning and installation of stormwater handling systems.
Maintenance of stormwater handling systems.
It is expected that learners will be given the opportunity to practice sizing stormwater systems based on verification methods outlined in NZBC E1 Surface water. This should include percolation testing methods for soakage systems.Online or Block Course
NewDrain2
Install stormwater handling systems
Assessment for this unit standard includes installation of stormwater handling systems including:

- A stormwater channel drain.
- A sub-soil drainage system.
- Type 1 and type 2 sumps.
- An onsite stormwater disposal system (ground soakage disposal system).
It is expected that learners will have had the opportunity to practice these tasks multiple times prior to assessment.At work or Block Course
Apply practical knowledge to the installation, commissioning, and maintenance of trade waste drainage systems.30612
Demonstrate knowledge of trade waste systems
This unit standard covers trade trade waste types, interception management, as well as installation and maintenance of trade waste interceptors.Learners should be given an the opportunity to practice sizing a food grease interceptor trap in accordance with NZBC G13 Foul water.Online or Block Course
30613
Install trade waste interceptor traps
Assessment for this unit standard includes the installation of any two trade waste interceptor traps.It is expected that learners will have had the opportunity to practice these tasks multiple times prior to assessment.At work or Block Course
Apply practical knowledge to the installation, commissioning, and maintenance of on-site waste water and effluent treatment and disposal systems.30600
Demonstrate knowledge of pumped drainage systems
Pumps relevant to drainlaying systems, positive displacement and non-displacement type pumps and their controls.

Underpinning concepts and trade science as it applies to pumps.

Determining pump requirements for de-watering and wastewater disposal systems.

Pump stations for foul water, stormwater and tradewaste.

Maintenance and fault finding for pumps relevant to drainlaying.
Where possible, theory of pumps and their operation should be delivered using actual examples of the types of pumps being explained.

Where learners are not exposed to pumps regularly in the workplace, they should be given a chance to install, commission and fault find practically, in a simulated environment.
Online or Block Course
30601
Install pumps for drainage systems
Assessment for this standard requires evidence of installation of pumps to meet the level of performance set out in the unit standard.

The pump is intended to be installed in at least a semi-permanent application and should include hard pipe and fittings.

It is not intended to be a temporary installation using flexible type hoses and connections.
It is expected that learners will have had the opportunity to practice these tasks multiple times prior to assessment.Online or Block Course
30538
Demonstrate knowledge of installation, commissioning, and maintenance of on-site wastewater treatment systems
This unit standard covers the installation, commissioning and maintenance of onsite wastewater treatment systems.

Knowledge of system types and components, soil properties, disposal fields and maintenance of these systems.
It is expected that, where learners are not exposed to these systems at work, learning delivery for this unit standard will involve the practical installation of a simulated system. This also includes maintenance procedures relevant to onsite wastewater treatment systems.Online or Block Course
Apply practical knowledge of subsoil, gradient, and excavation considerations to complete excavations and reinstatement.30532
Demonstrate knowledge of excavating and trenching for plumbing, gasfitting, or drainlaying.
This unit standard covers safe trenching practices and requirements, establishing line, level and gradient as well as collapse control and dewatering methods for excavations. Online or Block Course
Apply practical knowledge to interpret drainage drawings and specifications, and produce drawings and records of as-built work.30526
Demonstrate knowledge of interpreting job documentation for plumbing, gasfitting, or drainlaying jobs
This unit standard covers the interpretation of information from plans and specifications related to construction. It is expected that learners will be given the opportunity to practice establishing heights from datums and contours as well as sound instruction on creating schedules of quantities for materials. At work
Block Course
Apply the legislative responsibilities of a licensed drainlayer to drainlaying work.NewCore1
Demonstrate knowledge of the regulatory framework and compliance methods for plumbing, gasfitting, and drainlaying
This unit standard covers the New Zealand regulatory system as it applies to plumbers, gasfitters and drainlayers. Included in this unit standard are methods of compliance such as acceptable solutions and verification methods.Online or Block Course
30264
Describe duties, rights, representation and the regulator in terms of New Zealand health and safety legislation
Online or Block Course
28349
Demonstrate knowledge of theory for registration of drainlayers
Board exam
Work with consideration of other construction trades and related services on site and practice ethically.21881
Describe ethical and legal considerations for plumbing, gasfitting, or drainlaying services
Online or Block Course
30537
Work in plumbing, gasfitting, or drainlaying on a shared worksite with other trades and services
Working collaboratively with other trades and interested parties.At work, online or Block Course
Apply material science and selection, trade science, and trade calculations to work with drainage systems.21883
Demonstrate knowledge of working in gas contaminated environments in plumbing, gasfitting or drainlaying.
This unit standard covers safety around gasses commonly found in the plumbing, gasfitting and drainlaying industries.

This unit standard covers safety around gasses commonly found in the plumbing, gasfitting and drainlaying industries.
Online or Block Course
30692
Perform basic calculations used in a given trade situation
Calculations commonly used in trade environments.Calculation scenarios should be consistent with realistic expectations and methods of someone working in their particular trade of P,G and/or D.Online or Block Course
30616
Demonstrate knowledge of water, material properties, and of less frequently used materials in plumbing and drainlaying
Material properties and trade physics as they relate to plumbing and drainlaying systems. Water qualities and types as they are defined in the trade. Compatibility of materials, including galvanic reaction of metals, and the appropriate selection of methods and materials.Special attention should be given to incompatible materials, focussed efforts on teaching about the galvanic scale and galvanic action.

Study material should highlight the importance of identifying asbestos as it applies to historic material use in drainlaying. Where it may be found, what to do in situations where it must be adapted to, how to remove and dispose of Asbestos pipe material.
Online or Block Course
Apply safe working practices; and environmentally sustainable considerations to complete work with drainage systems.6400
Manage first aid in an emergency situation
It is intended that safety unit standards 6400 and those listed below in this table be completed in the first 6 months of training.Where possible, learning task 6400 and those listed below in this table should be tailored to the learners trade of P,G and/or D.Third party
6401
Provide first aid
Third party
6402
Provide basic life support
Third party
17599
Plan a confined space entry
Third party
Block Course
18426
Demonstrate knowledge of hazards associated with confined spaces
Third party or Block Course
30264
Describe duties, rights, representation and the regulator in terms of New Zealand health and safety legislation
Online or Block Course
30596
Demonstrate knowledge of asbestos and safety measures for asbestos-related work.
Online or Block Course
30658
Demonstrate knowledge of fundamental electrical safety in the workplace
Online or Block Course

How to give your feedback

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