Types of Copper Fittings Explained: Couplings, Elbows & Tees
A plain-English guide to copper fittings — couplings, elbows, tees, adapters, reducers, caps, unions and valves — and when to use each on a job.
Read the guide →The Copper Plumbing Blog
Practical guides on copper fittings, pipe sizing, soldering, and material choices — written for plumbers, contractors, and serious DIYers. By G. G. Wilkins.
Copper Pipe Sizing Guide: From 1/2 Inch to 4 Inch
How to size copper pipe from 1/2" to 4" — nominal vs actual OD, Type K/L/M walls, flow and fixture-unit rules of thumb, and common mistakes.
Read the guide →How to Sweat a Copper Joint: Step-by-Step (Pro Method)
A step-by-step guide to sweating a copper joint — clean, flux, heat, and solder — plus common mistakes that cause leaks and how to avoid them.
Read the guide →Copper vs. PEX: Pros, Cons, and Cost in 2026
Copper vs PEX in 2026 — an honest comparison of cost, durability, installation, health, and resale, to help you choose the right pipe for the job.
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