Monday, November 2, 2026
The Plumbing Brief
Independent plumbing intelligence
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The Plumbing Brief

How-To

Step-by-step plumbing guides: how to fix, install, unclog, and maintain the plumbing in your home, and when a job calls for a licensed plumber.

Exposed bathroom plumbing showing toilet, sink and tub connections
How-To

Bathroom Plumbing Diagram: How the Whole Room Connects

A bathroom plumbing diagram explained: how the toilet, sink, tub and shower drains, vents and supply lines connect,…

Rough-in DWV and supply pipes in open wall framing
How-To

Rough-In Plumbing: Stages, Inspection, and What It Covers

Rough-in plumbing explained: the three build phases, DWV vs supply, the rough-in inspection and pressure test, and how…

Assorted plumbing valves, pipe wrenches, and copper and PVC pipe sections on a workbench, shot at an angle.
How-To

Plumbing Valves: Every Type and When to Use Each

The plumbing valves in your home, explained: ball, gate, globe, check, angle stop, and PRV. What each does,…

An assortment of elbows, tees and couplings on a bench
How-To

Plumbing Fittings: Types, Connections, and When to Use Each

Plumbing fittings explained: elbow, tee, coupling, union, reducer and more, plus which connection (sweat, compression, push-fit) to use…

Hands soldering a copper pipe joint with a propane torch, flux brush, wire brush, and solder roll nearby.
How-To

How to Solder Copper Pipe: Sweat a Joint That Holds

Plumbing solder made simple: clean, flux, heat, and sweat a leak-free copper joint. Lead-free solder, the bread trick,…

A close-up of a white PVC P-trap under a sink
How-To

P-Trap: What It Is, the Sizes You Need, and How It Works

A P-trap holds water to block sewer gas. Learn how it works, the right sizes (1-1/4 vs 1-1/2…

Kitchen rough-in plumbing stub-outs for a sink and dishwasher
How-To

Kitchen Plumbing Rough-In: Dimensions, Pipe Sizes, and Layout

Kitchen plumbing rough-in dimensions for the sink, dishwasher, disposal, ice maker, and vent in one table, plus pipe…

Crimp tool on copper ring over red PEX tubing and brass fitting, with tubing coils and pipe cutters on a workbench.
How-To

How to Plumb With PEX: Fittings, Tools, and Layout

PEX plumbing done right: compare crimp, cinch, and expansion fittings, the tools each needs, plus home-run vs trunk-and-branch…

The P-trap and supply lines under a bathroom sink
How-To

Bathroom Sink Plumbing: Parts, Sizes, and How It Works

How bathroom sink plumbing works under the vanity: pop-up drain assembly, pivot rod, P-trap, supply lines, and the…

Exposed shower valve and drain rough-in in an open bathroom wall
How-To

Shower Plumbing Diagram: Rough-In Dimensions and Layout

A shower plumbing diagram with rough-in dimensions: 2-in drain and P-trap, 48-in valve, 80-in head, 1/2-in supply lines,…