Gilbert Water Systems by My Home Water System

Water softeners and filtration in Gilbert, AZ

How hard is Gilbert water?

Total hardness reported by Town of Gilbert: Average 10.79 grains per gallon (184.44 mg/L), range 6.61-17.54 grains per gallon (Calendar year 2025).

Moderately hard to very hard Town of Gilbert's figures for Gilbert read as moderately hard to very hard on the USGS scale (grains converted at 17.1 mg/L per grain).

SoftMod.HardVery hard
Gilbert: 113 to 300 mg/L (converted from grains per gallon) on USGS bands, 0 to 400 mg/L.

Source: Gilbert 2025 Annual Drinking Water Quality Report. Sources last checked October 26, 2026.

Who you are working with. We are lining up one local company to serve this area. The request form names that company before you submit. We are not a water utility.

What does Town of Gilbert publish about Gilbert water?

Gilbert treats Salt River Project and Central Arizona Project canal water at two plants and adds water from town wells.

MeasureAs publishedPeriodSource
Total hardnessAverage 10.79 grains per gallon (184.44 mg/L), range 6.61-17.54 grains per gallonCalendar year 2025Gilbert 2025 Annual Drinking Water Quality Report
  • Gilbert disinfects with chlorine. Its 2025 residual averaged 0.92 ppm.

What does 113 to 300 mg/L mean for a Gilbert home?

113 to 300 mg/L is about 6.6 to 17.5 grains per gallon. The low end, 113 mg/L, is 7 mg/L under the 120 mg/L top of the USGS moderately hard class; Gilbert's high end, 300 mg/L, is 120 mg/L over the 180 mg/L line where the USGS very hard class starts. (USGS hardness classes)

Which systems fit Gilbert water?

How does a Gilbert quote work?

  1. Send a request from one of the 7 Gilbert ZIP codes listed below.
  2. An assessment at your home, where your tap can be checked against Town of Gilbert's published 113 to 300 mg/L.
  3. You get a written quote listing what is included.
  4. Installation and service by that company.

Common questions

How hard is the water in Gilbert?
Total hardness reported by Town of Gilbert: Average 10.79 grains per gallon (184.44 mg/L), range 6.61-17.54 grains per gallon (Calendar year 2025).
Is Gilbert water hard or soft?
Moderately hard to very hard. The low end, 113 mg/L, is 7 mg/L under the 120 mg/L top of the USGS moderately hard class; Gilbert's high end, 300 mg/L, is 120 mg/L over the 180 mg/L line where the USGS very hard class starts.
How many grains per gallon is Gilbert water?
In grains per gallon, as published: 10.79 grains per gallon (Town of Gilbert, total hardness, Calendar year 2025).
Where does Gilbert tap water come from?
Gilbert gets Salt and Verde River water through Salt River Project canals and Colorado River water through the Central Arizona Project, plus groundwater from 17 wells. Source: Gilbert water quality page.
Does Gilbert water change over time?
Gilbert leans on groundwater during high demand and when canals are dried out for maintenance. Source: Gilbert water quality page.
Is Gilbert water treated with chlorine or chloramine?
Gilbert disinfects plant water with ozone and chlorine, and its pipes carry chlorine. Source: Gilbert water quality page. A softener does not remove it.
How does Gilbert water compare with nearby cities?
Published hardness in Gilbert spans 113 to 300 mg/L (converted from grains). Nearby: Mesa 205 to 274 mg/L (converted from grains); Chandler 173 to 288 mg/L; Scottsdale 215 to 290 mg/L; Phoenix 172 to 302 mg/L.
Do I need a water softener in Gilbert?
Town of Gilbert publishes 113 to 300 mg/L for Gilbert, which reads as moderately hard to very hard. A test at your house shows whether your tap matches it.
Is the water the same in every Gilbert home?
Town of Gilbert publishes one figure for its whole system (Calendar year 2025).
How much does a water softener cost in Gilbert?
We publish no prices for Gilbert. The installing company gives a written quote after an assessment at your home.
Who installs the system?
We have not named a local installing company for Gilbert yet. We will tell you the company's name and ask you before your request is shared with anyone.
Is Gilbert Water Systems part of the city or the water utility?
No. Gilbert Water Systems is not affiliated with Town of Gilbert; it copies and links the published figures.
Is booking an assessment a purchase?
No, and a request commits you to nothing.

Which ZIP codes does this page cover?

85233, 85234, 85236, 85295, 85296, 85297, 85298

Nearby cities

Mesa, Chandler, Scottsdale.

Compare published hardness in other cities on hard water by city.

Machine-readable facts: water.json. Summary for AI assistants: llms.txt.

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