major DIY repairs and improvements that will save you money! No need to hire a plumber, especially in emergencies when you need an immediate fix. This best-selling guide on plumbing will teach you everything you need to know, from understanding how plumbing systems work and fixing a leaky faucet to making renovations, soldering copper, installing fixtures, and so much more. Featuring detailed how-to diagrams, code-compliant techniques, tips on how to spot and improve outdated or dangerous materials in your home plumbing system, and so much more, this newly updated edition features new code-compliant techniques for 2021, plus a new section on air gap fittings.