Free calculator · July 2026 averages

Home water purification calculator

Answer four questions and get a treatment setup matched to your state's water — with real 2026 installed-price ranges from Angi's cost guides, not marketing numbers.

Home water purification calculator

California water averages 200 PPM (very hard) · quality score 83.7/100

State

Water source

Household size

Biggest concern

$1,050–$2,700estimated installed cost for the setup below (Angi 2026 ranges)

Certified water test
Know exactly what you're treating before buying anything.$50–$200

Water softener (installed)
Removes hardness minerals; protects heater and fixtures from scale.$1,000–$2,500

Ongoing: budget for filter cartridge changes roughly every six months and RO membrane replacement every 2–5 years.

Test your water at home

Estimates are installed-price ranges from published 2026 cost guides, not quotes. We may earn a commission on purchases through links on this page, at no cost to you — it never affects the data.

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