San Tan Valley water hardness averages 15-18 GPG — well above the national average of 6 GPG. Our EcoFlow water softeners are sized specifically for Arizona's extreme hard water, using up to 75% less salt than conventional systems.
15-18 GPG
Water Hardness (vs. 6 GPG national avg)
EPCOR groundwater wells
Primary Water Source
Nearest: Mesa
CWC Showroom & Service Center
At 15-18 GPG, San Tan Valley's water is some of the hardest in the country. Hard water causes scale buildup in pipes and water heaters, spots on dishes and glass, dry skin and hair, and shortened appliance lifespans. Common issues in San Tan Valley water include: Hardness, TDS, chlorine.
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Financing for 9 Months
Homes in San Tan Valley get their water from EPCOR groundwater wells, and it tests at 15-18 GPG — hard enough that scale shows up on fixtures and inside water heaters within months. We size every softener for San Tan Valley's water, not a national average.
water softeners
Microprocessor on-demand technology improves efficiency by 50%, regenerating only when needed. Smart metered valve tracks usage and regenerates at the optimal time.
or $217/mo for 9 months · 0% APR (32K)
dual stage
Industry-leading system combining water softening and filtration in one unit. Custom designed to CWC specifications for Arizona's extreme hard water conditions.
or $294/mo for 9 months · 0% APR (32K)
dual stage
Premier split-tank dual-stage system for households seeking the highest standard in both softening and filtration. Separate softening and carbon filtration tanks for optimal performance.
or $461/mo for 9 months · 0% APR (32K)
The hardness range on this page reflects what we measure in San Tan Valley homes during free in-home water tests. The city's own testing is published in EPCOR Water (San Tan)'s annual water quality report.
View the EPCOR Water (San Tan) report(opens in a new tab)6056 E Baseline Rd ste 135
Mesa, AZ 85206
Mon–Fri: 8am–4pm
Sat-Sun: 8am–1pm (Sales Only)
San Tan Valley water hardness averages 15-18 GPG, sourced from epcor groundwater wells. This is significantly harder than the national average of 6 GPG, meaning scale buildup, dry skin, and appliance damage are common without treatment.
Yes — San Tan Valley is within our Phoenix metro service area. Our nearest location is in Mesa. We offer free in-home water testing and same-week installation in most cases.
Our EcoFlow water softeners start at $1,895 for a 32K grain system. Most San Tan Valley homes need a 48K ($2,295) or 64K ($2,695) grain system depending on household size. All prices include professional installation and a lifetime tank warranty. 0% APR financing is available for 9 months.
Most San Tan Valley installations are finished in a single visit — a few hours when the home already has a softener loop, longer when we need to run a new line. We confirm the scope during your free in-home water test so there are no surprises on install day.
Many newer San Tan Valley homes are pre-plumbed with a softener loop, which makes installation faster and less expensive. Older homes without a loop need a full line run to the main. We quote both options up front — see our loop vs. full-line guide for what to expect.
At 15-18 GPG, San Tan Valley water is hard enough that most homeowners want true softening. Salt-free conditioners reduce scale without removing hardness minerals, so they fit homes on septic or anywhere brine discharge is a concern. We recommend one or the other based on your water test, not a sales quota.
Mainly salt. Our Smart Salt Delivery program monitors your brine tank and delivers salt automatically, and our technicians service systems across San Tan Valley and the Phoenix metro. Beyond salt, a properly sized system needs very little attention.
Yes — 0% APR financing for 9 months is available on every system we install in San Tan Valley, and pairing a water softener with reverse osmosis saves $450 with our bundle.
Pair your water softener with an RO system for complete water treatment. Remove 99%+ of dissolved solids for pure drinking water from your kitchen faucet. Save $350 with our bundle deal.
San Tan Valley Reverse Osmosis Systems→A water expert will test your water, recommend the right system, and give you a no-pressure quote — all for free.
