Plumbing by the book

What's your plumbing problem?

Honest DIY plumbing guidance -- including when NOT to DIY. Answer a few questions and we will point you to the exact part and the right fix.

Diagnose it in 60 seconds Browse guides

Free tools. Plain-English guides. No upsells.

Cartridge & Valve Finder Identify the exact faucet, shower, or toilet part you need -- and how to remove it without cracking the valve. Start the finder →
Toilet Water-Waste Calculator See what a running or leaking toilet is actually costing you in water each month -- with editable local water rates. Run the numbers →

Research

We analyzed 227 real homeowner plumbing problems.

Toilets are the #1 DIY plumbing headache (36%) and leaks the most common malfunction (23%). See the full data study -- methodology, charts, and limitations stated plainly.

Read the study →

A real process Every guide is researched against manufacturer specs and real repairs, then calibrated for difficulty.
Cited sources We link the spec sheets and standards behind our advice -- no made-up numbers.
When to call a pro We tell you the moment a job stops being DIY -- before a $25 fix becomes a $1,500 repair.