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Editor's pick
bathroom

Fix a Dripping Shower: Replace Valve Stem or Mixing Valve

Dripping shower, stiff handle, or wild temperature swings? The fix depends on which valve type you have. This guide covers both paths: valve stem replacement for older 2-handle showers, and full mixing valve replacement for modern single-handle setups.

Wed May 27 2026

Latest guides

Freshly published
plumbing

How to Fix a Leaky Pipe Under a Sink or at a Joint

Panicking over a leaky pipe? Don't call a plumber just yet! Learn safe, effective DIY fixes for common leaks under sinks and at pipe joints — including leaky fittings, compression nuts, and pinhole cracks. Save money and gain confidence with this step-by-step guide.

Sun May 24 2026
faucets

Fix a Moen Kitchen Faucet That Won't Turn Off

If your Moen kitchen faucet keeps dripping after you close the handle, a worn cartridge is almost always the reason. Here's how to spot which cartridge you have (1225, 1255, or 1200-series), what the wear pattern tells you, and how to swap it — often for free under Moen's lifetime warranty.

Mon Apr 20 2026
plumbing

Install a Water Supply Line: PEX vs Copper, Sizing & More

Installing, extending, or repiping a whole-house water supply system — how to choose between PEX-A, PEX-B, and copper; size 1/2" vs 3/4" lines correctly; pick trunk-and-branch or a home-run manifold; and handle the service line from meter to house. Written with code references and field-tested install practices.

Sat Apr 18 2026
standards

Uniform Plumbing Code (UPC) - Western USA Plumbing Standard

The Uniform Plumbing Code (UPC) is a prescriptive model plumbing code predominantly used in the Western United States. Published by IAPMO, the UPC provides detailed specifications for plumbing installations with an emphasis on specific materials and methods.

Fri Dec 12 2025
standards

Uniform Mechanical Code (UMC) - Western USA HVAC Standard

The Uniform Mechanical Code (UMC) is IAPMO's comprehensive mechanical code for HVAC systems used primarily in Western United States. It provides detailed requirements for heating, ventilation, cooling, and refrigeration installations.

Fri Dec 12 2025
standards

SMACNA Standards - Sheet Metal and Duct Construction Standards

SMACNA (Sheet Metal and Air Conditioning Contractors' National Association) publishes technical standards for ductwork fabrication, installation, and HVAC construction. These industry-recognized standards ensure quality and performance in sheet metal work.

Fri Dec 12 2025
standards

National Standard Plumbing Code (NSPC) - Regional USA Standard

The National Standard Plumbing Code (NSPC) is a model plumbing code developed by PHCC and used primarily in New Jersey and Maryland. It provides comprehensive plumbing regulations with a focus on practical field applications and trade expertise.

Fri Dec 12 2025
standards

International Plumbing Code (IPC) - USA Plumbing Standard

The International Plumbing Code (IPC) is a performance-based model plumbing code widely adopted across the United States. Currently used in 37 states plus Washington D.C., the IPC provides comprehensive regulations for plumbing system design, installation, and inspection to ensure public health and safety.

Fri Dec 12 2025
standards

International Mechanical Code (IMC) - USA HVAC Standard

The International Mechanical Code (IMC) is a comprehensive model code for mechanical systems including HVAC, ventilation, and ductwork. Widely adopted across the United States, the IMC ensures safe and efficient installation of heating, cooling, and air distribution systems.

Fri Dec 12 2025

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