Plumbing Topics, Explained Simply
Each guide explains one part of the plumbing path in plain English and lists the lessons that teach it. Every guide is free to read.
Before you start: some plumbing work is regulated or notifiable
Some water fittings work needs notice to, and consent from, the water supplier before it starts. Check the rules where you live.
Gas work is for competent workers covered by a Gas Safe registered business in Great Britain. Northern Ireland has separate gas regulations. Do not work on gas pipes or appliances yourself.
In England, installing an unvented hot-water system over 15 litres is notifiable building work: use a competent installer registered with a competent-person scheme, or tell building control before work starts. Leave this work to a suitably skilled person.
Wales, Scotland and Northern Ireland have their own water and building rules; check which apply before work starts. Electrical connections belong with an electrician.
This guide does not qualify you or make you competent, approved or registered for plumbing, gas or unvented work.
Plumbing Basics
The water systems in a home, what pressure and flow mean, and when to stop.
Safe Working
The hazards that sit beside plumbing work, and how to plan around them.
Cold Water Basics
Where the supply comes in, how water is stored and why backflow matters.
Pipework & Jointing
Telling pipe materials apart, and the joints and fixings that hold them.
Isolation, Hot Water Safety and Simple Repairs
Turning water off safely, recognising hot-water risks and planning small repairs.
- Isolating and Draining DownBefore most plumbing work the water has to be off and the pipes empty.
- Hot Water SafetyHot water can scald, and stored water can grow bacteria, so hot-water systems carry safety rules of their own.
- Everyday Plumbing RepairsDripping taps, running WCs, slow drains and small leaks are the jobs most people meet first.
Study plumbing as connected systems
Updated
From supplies to materials and maintenance
Follow the route from the incoming supply to water storage, distribution and outlets. Compare materials and joints only after you understand the service conditions. Keep isolation, contamination and neighbouring services in view as you study each topic.
Questions to take further
- What should a beginner know before learning pipe joints?
- Identify the system, its water temperature and pressure, the pipe material and the available isolation. Learn the purpose of the joint and the manufacturer's compatibility requirements before practical training.
Sources
- Skills England: plumbing and domestic heating technician — The range of plumbing systems and skills in the England occupational standard.
- Water Regs UK: backflow protection — Contamination risks and the selection of appropriate backflow protection.