Working with Plastic Soil and Waste Pipe

Know the tools and equipment used for cutting and jointing plastic soil and waste pipe.

Plumbing tools for waste pipework

• pencil
• mitre box
• panel saw
• plastic pipe cutters
• cordless drill and bit, rawplugs
• screwdriver bit

Assessment Criteria

• 1.1

  Identify the plumbing hand tools used for cutting and jointing plastic soil and waste pipe.

Know the different fittings and sizes of plastic soil and waste pipe used in basic plumbing systems.

Material specifications and use

• soil and vent pip 100 mm dia, 160mm dia
• waste pipework 32mm 40mm ,
• 21.5mm for overflows
• pipe lengths 3m,
• soil and vent pip 100 mm dia, 160mm dia
• waste pipework 32mm 40mm , 21.5mm for overflows
• pipe lengths 3m, 6m

Waste pipework fittings

• type of fitting, push fit, solvent welded, mechanical fixing
• traps, s or p type
• straight, bend, specialist pipe connectors
• svp branch connectors
• pipe clips and screws

Waste pipework installation

• volumes of waste water from fitting
• type of trap required
• fall required to pipe
• planning route
• sizing pipework
• measuring lengths required
• cutting pipework
• installation and jointing
• testing for any faults

Assessment Criteria

• 2.1

  State typical pipe diameters and their use for soil and waste pipes.

• 2.2

  Identify the following fittings

  a) push-fit

  b) solvent weld

  c) mechanical

• 2.3

  State typical sizes and uses for the following fittings

  a) push-fit

  b) solvent weld

  c) mechanical

• 2.4

  Describe installation procedures for waste pipework.

Be able to carry out a plumbing waste installation using plastic soil and waste pipe.

Demonstrate waste pipework installation

• measure sink waste outlet
• plan material quantities required
• cutting of pipework
• fixing pipe brackets
• jointing of pipework
• installation of sink trap
• final connections to soil stack
• testing the installation

Assessment Criteria

• 3.1

  Estimate the materials required for a waste connection from a sink unit to a soil stack.

• 3.2

  Measure and cut waste pipework to size.

• 3.3

  Carry out basic plumbing tasks using waste fittings and pipework.

• 3.4

  Test the completed waste pipework installation for water tightness.