Free browser-based calculator

Owned Treatment vs Purchased Water Service Calculator

Compare owning treatment equipment with purchased water or service over time.

Project inputs

Change the assumptions to explore an early planning scenario.

Planning result

Enter your assumptions

  • Owned treatment path
  • Purchased service path
  • Difference
  • Lower entered path

How to use this result

Use after confirming quality, volume, logistics, reliability and contract terms.

Equivalent service

Make sure both paths deliver the same verified water specification.

Simple model

Financing, inflation and residual value are not included.

Important: Costs, utility rates, permits, inspections, environmental duties, health requirements, safety rules and equipment standards vary by country, province or state, municipality, building use, equipment type and project scope. Qualified local professionals and the authority having jurisdiction must determine what applies. Water appearance, taste or a single test result cannot establish safety. Treatment must be selected from appropriate testing, intended use, local health requirements and qualified professional review. This site does not diagnose contamination or certify water as safe.