Plumbing & Water Treatment
in Phoenix, AZ
Phoenix homeowners: you have some of the hardest water in America. Aqua Cat (owner-operated) brings 32 years of Arizona plumbing experience to Phoenix homeowners. 90-day repair guarantee. 2-year warranty on new installs.
Hard to very hard — 10 to 17.6 grains/gal
Phoenix's 2025 water quality report lists total hardness of 172–302 ppm — 10 to 17.6 grains per gallon depending on area, classified as 'hard' to 'very hard.' The water complies with EPA standards; the city's own report notes scaling in pipes and water heaters as the practical effect. Water is a blend of SRP/CAP surface water and groundwater, so scale and hardness touch nearly every home.
Common Phoenix Plumbing & Water Issues
These are the problems we see most often in Phoenix homes.
- Extreme scale on fixtures, tile, and glass
- Chlorinated river-water taste — TTHMs detected up to 68 ppb (2025 report)
- Reduced water heater and appliance lifespan
- Dry skin, dull hair, stiff laundry
- Soap curd and reduced detergent efficiency
Phoenix’s 2025 water report, by the numbers
Phoenix drinking water is 97–99% surface water — Salt and Verde River water delivered by SRP plus Colorado River water via the CAP canal — topped off by about 2% groundwater from roughly 20 city wells. The city’s 2025 water quality report puts hardness at 172–302 ppm — 10 to 17.6 grains per gallon depending on your area and which treatment plant feeds it. That is “hard” to “very hard” everywhere in the city, and the report itself notes scaling in pipes and water heaters as the practical consequence.
The same report lists disinfection byproducts (TTHMs) detected from 4 to 68 ppb against an 80 ppb limit — the signature of chlorinated river water, and the single best reason Phoenix homes add whole-house carbon. Arsenic averaged 7 ppb against the 10 limit, and of 29 PFAS compounds monitored, only PFBS and PFBA appeared at trace parts-per-trillion levels. An under-sink RO plus a properly sized softener answers the whole profile: minerals handled at the loop, drinking water polished at the tap.
Phoenix housing, era by era
The median Phoenix home was built in 1986 — the exact heart of the polybutylene years (1978–1995), when gray poly supply lines went into millions of American homes before failing chlorine degradation led to some of the largest plumbing class settlements on record. Add slab-on-grade construction with copper runs under the concrete, and the two signature Phoenix pipe problems are poly aging in the walls of Maryvale-to-Ahwatukee-era homes and slab leaks announcing themselves as warm spots on the floor. Both are diagnosable before they flood anything.
Then there is the heat: summer 2024 ran 113 consecutive days at or over 100°F. Garage water heaters work in that, inlet water arrives warm, and pressure-relief valves and expansion tanks earn their keep. From Arcadia and Moon Valley to Laveen and Ahwatukee, the pattern holds — 10–17 grain water plus 100-degree infrastructure means maintenance beats emergency every time, and monsoon season (June 15–September 30) stress-tests whatever was marginal.
What We Do in Phoenix
Every service we offer is available in Phoenix — with the same 90-day repair guarantee and 2-year installation warranty.
Whole-House Water Filtration
Protect every tap, appliance, and fixture in your Phoenix home from hardness, chlorine, and contaminants.
Reverse Osmosis Systems
Under-sink and whole-home RO built for Phoenix's water profile. Arsenic, PFAS, chromium-6 removal.
Water Softening
End scale buildup and extend appliance life. Sized specifically for your Phoenix water hardness.
Priority Same-Day Plumbing
Burst pipes, slab leaks, water-heater failures in Phoenix — we get there as fast as possible, Mon-Sat 7am-7pm.
Transparent Pricing
See all our service pricing up front. No surprises. Free on-site estimates for Phoenix residents.
$185 Premium Water Test
Certified lab analysis for your Phoenix address — arsenic, lead, uranium, nitrate, bacteria and hardness. Ordered from SimpleLab; we read the results with you free. (PFAS is a separate $334 lab test.)
Ready for better water in Phoenix?
Call Aqua Cat (owner-operated) directly. No sales pressure. Straight answers. 32 years serving Arizona.
Call (480) 228-8282Mon-Sat 7am-7pm • 90-day repair guarantee • 2-year labor warranty plus the manufacturer's warranty