Phoenix Water Quality Report
10–17.6
GPG Hardness
(Grains per Gallon)
172–302
mg/L Hardness
(as calcium carbonate)
Hard to Very Hard
Classification
(over 10.5 GPG = very hard)
Primary water source: About 98% surface water from the Salt, Verde and Colorado rivers (via SRP canals and the CAP aqueduct), plus about 20 city wells
Hardness source: City of Phoenix 2025 Water Quality Report.
Common Hard Water Issues in Phoenix
Phoenix Water Services treats water from the Salt, Verde and Colorado rivers at five treatment plants, and the city's 2025 Water Quality Report lists total hardness of 10–17.6 GPG (172–302 mg/L) across the distribution system. Most of that range sits above the 10.5 GPG line that the USGS classifies as very hard, and the exact number at your tap depends on which plant and source blend serves your neighborhood.
- !Calcium and magnesium scale on shower heads and faucets
- !White residue on dishes straight from the dishwasher
- !Reduced water heater efficiency and shortened lifespan
- !Dry, itchy skin and dull hair after showering
- !Chlorine taste and odor from city treatment
- !Soap scum buildup on tubs and tiles
Our Systems for Phoenix Homeowners
Salt Softener + RO Bundle
$3,399
Whole-home salt softener with an under-sink alkaline RO system included. Fully installed.
Get This SystemSalt-Free Conditioner
$2,999
Zero maintenance. No salt. Prevents scale without removing minerals.
Get This SystemUnder-Sink RO + Alkaline (Standalone)
$899
Standalone RO drinking water system. Removes 99%+ of contaminants from your tap.
Get This SystemWhy Phoenix Homeowners Choose Whale Spout Water
- We install a whole-home salt softener with an under-sink alkaline RO system included in Phoenix for $3,399, while Culligan quotes $6,500 to $9,000 for the softener alone
- No sales pressure. Free 15-minute virtual consult, no 90-minute in-home pitch
- Licensed and insured in the state of Arizona
- Lifetime warranty on all equipment we install
- Same-day installs available: water test, survey, and install in one visit
- We buy direct from manufacturers, no franchise fees, no commission markups
Frequently Asked Questions: Phoenix
Do you install water softeners in Phoenix?
Yes. We serve all of Phoenix and the surrounding Phoenix metro area. We install the Salt Softener + RO Bundle ($3,399: a whole-home salt softener with an under-sink alkaline RO system included), salt-free conditioners ($2,999), and standalone under-sink RO systems ($899), all fully installed with lifetime warranties.
How hard is the water in Phoenix?
Phoenix water runs approximately 10–17.6 GPG (grains per gallon). Water above 7 GPG is classified as hard and above 10.5 GPG as very hard. At these levels hard water causes scale buildup, appliance wear, and dry skin and hair.
How much does a water softener cost in Phoenix?
At Whale Spout Water in Phoenix, it's $3,399 for a whole-home salt softener with an under-sink alkaline RO system included, fully installed with a lifetime warranty. That covers all equipment, fittings, and professional installation. Culligan typically quotes $6,500 to $9,000 for a whole-home softener alone.
How long does installation take in Phoenix?
Most installations in Phoenix are completed in a single visit: our tech comes out, tests your water, surveys the space, and installs the system the same day (typically 4–6 hours). If your home has unusual plumbing, we may need to schedule a follow-up, but we'll always let you know upfront. Someone just needs to be home during the install window.
Ready for Better Water in Phoenix?
Book your free 15-minute virtual consult. No pressure, no sales pitch, honest answers.
Also serving nearby communities:
Water hardness and quality figures on this page reflect publicly available data as of June 1, 2026, and may have changed since. For your home's exact numbers, check your water provider's latest annual water quality report or book a free consultation.