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.

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 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…

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,…

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…

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,…

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 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…

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…

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…

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,…