plumbing Calculator Scenario

Pressure Loss in 100-Foot Pipe Run

Long pipe runs to remote fixtures or outbuildings can result in significant pressure drop that affects fixture performance.

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Key Considerations

  • 1Typical allowable loss: 5-10 PSI per 100 ft
  • 2Upsize pipe for long runs to reduce loss
  • 3Fittings add equivalent length (elbows, tees)
  • 4PEX has higher friction than copper

Applicable Standards

Hazen-WilliamsDarcy-Weisbach

Scenario Parameters

flow Rate
0.63
pipe Length
30
pipe Diameter
25
pipe Material
copper
calculation Method
darcy-weisbach

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