Plumbing How-To Guides
Step-by-step guides to help you size pipes, calculate flow rates, design systems, and complete plumbing projects. Each guide includes calculators and code compliance information.
Learn how to size water pipes correctly for your plumbing system. Step-by-step guide with pipe sizing calculator, formulas, and code compliance.
Learn how to properly size a water heater for your home. Step-by-step guide with water heater sizing calculator, formulas, and capacity requirements.
Learn how to properly size gas lines for appliances. Step-by-step guide with gas line sizing calculator, NFPA 54 standards, and safety requirements.
Learn how to calculate water flow rate through pipes. Step-by-step guide with flow rate calculator, formulas (Hazen-Williams, Darcy-Weisbach), and examples.
Learn how to calculate fixture units for plumbing system design. Step-by-step guide with fixture unit calculator, IPC/UPC code tables, and pipe sizing.
Learn how to properly size a septic system. Step-by-step guide with septic system sizing calculator, tank size, drain field area, and code requirements.
Learn how to calculate proper drainage slope for sewer lines and drains. Step-by-step guide with drainage slope calculator, code requirements, and installation tips.
Learn how to properly size a tankless water heater. Step-by-step guide with tankless water heater calculator, flow rate calculations, and BTU requirements.
Learn how to calculate water pressure drop in pipes. Step-by-step guide with pressure drop calculator, Darcy-Weisbach formula, and friction loss calculations.
Learn how to estimate plumbing project costs. Step-by-step guide with plumbing cost calculator, material pricing, labor rates, and markup calculations.
Why Use Our How-To Guides?
Step-by-Step Instructions
Clear, detailed steps that walk you through each calculation and design process from start to finish.
Integrated Calculators
Each guide includes direct links to our professional calculators for instant, accurate results.
Code Compliance
Learn about IPC, UPC, and NFPA code requirements to ensure your projects meet standards.