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Plumbing

Plumbing calculators for pipe sizing, water heater sizing, gas lines, drainage, and water flow calculations

Calculators & Instant Answers

Interactive tools and pre-calculated results for common scenarios

Calculate required pipe sizes based on fixture unit loads per International Plumbing Code

Determine appropriate water heater capacity based on occupancy and usage patterns

Calculate natural gas and LP gas pipe sizing based on BTU load and pipe length

Calculate proper slope for drainage pipes to ensure adequate flow per plumbing codes

Calculate water pressure loss and flow rates in piping systems using Hazen-Williams equation