(619) 853-6087 Free Estimate
40% off ends Oct 31, installation included

Poway Water Softener and Filtration Company

Local, veteran-owned water treatment for the City in the Country, from Old Poway to Green Valley.

Poway's tap water is almost entirely imported Colorado River and State Water Project water, treated at the city's Lester J. Berglund Water Treatment Plant. It averages about 13.7 grains per gallon of hardness, is disinfected with chloramine, and EWG lists 12 contaminants above its health guidelines. Pure Coast installs water softeners, catalytic carbon filtration, salt-free conditioners and reverse osmosis for Poway homes, starting with a free in-home water test. Most installs take one visit and are backed by a lifetime warranty.

Prefer to talk? Open 7 days, 8am to 6pm(619) 853-6087
Poway favorite 40% OFF

Poway Home Water System

$5,665 $3,399 installed

or from $60/month with financing

Offer ends Oct 31, 22 days left

  • Mixed bed water softenerEnds scale, spots and dry skin
  • Catalytic carbon built inRemoves chlorine and chloramine
  • 8-stage reverse osmosisBottled-quality water at your sink
  • Professional installationLocal techs, usually one visit
Veteran Owned American Made Lifetime Warranty NSF Certified 5-Star Rated
Free in-home water test

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(619) 853-6087
Poway water report

Poway Water Quality: What's Really in Your Tap Water

Poway runs its own water utility. About 99.5% of its raw water is imported through the San Diego County Water Authority from the Colorado River and Northern California, with the rest from Lake Poway, and all of it is treated at the Lester J. Berglund Water Treatment Plant. The water meets state and federal standards, but it's very hard, high in dissolved minerals, and EWG lists 12 contaminants above its stricter health guidelines, mostly disinfection byproducts plus arsenic and uranium.

13.7gpg
Average hardness (235 ppm)
510ppm
Average dissolved solids (TDS)
12above
EWG health guidelines
Contaminants above EWG health guidelines in Poway water and what removes them
ContaminantCarbon stageRO faucetPure Coast system
Arsenic
Bromodichloromethane
Bromoform
Chloroform
Dibromoacetic acid
Dibromochloromethane
Dichloroacetic acid
Haloacetic acids (HAA5)
Haloacetic acids (HAA9)
Total trihalomethanes (TTHMs)
Trichloroacetic acid
Uranium

Sources: EWG Tap Water Database, City of Poway (PWS CA3710015), 24 contaminants detected and 12 above EWG guidelines, 2013 to 2023 data; and the City of Poway 2023 Water Quality Report (hardness 235 ppm average, range 165 to 291; TDS 510 ppm; sodium 91 ppm; arsenic 1.83 ppb average against a 10 ppb legal limit; chloramine disinfection). All results were below state and federal legal limits; EWG health guidelines are stricter, health-based goals. Contaminants marked for the RO faucet are reduced in your drinking and cooking water at the kitchen sink.

Our systems

Water Treatment Systems for Poway Homes

Four ways to fix Poway water, from a complete whole home system to drinking water only. Pick one to start, and we'll confirm the right fit at your free in-home water test.

Best value
Pure Coast mixed bed water softener with catalytic carbon and 8-stage reverse osmosis
Mixed bed softener + carbon + RO

Whole Home Water System

Our current special: a mixed bed water softener with catalytic carbon, plus an 8-stage reverse osmosis faucet. Soft, chlorine-free water at every tap and purified drinking water at the sink.

$5,665$3,39940% OFF

Installed, or from $60/month

What's inside

  • Mixed bed tank: softening resin + catalytic carbon
  • Removes hardness, chlorine and chloramine
  • 8-stage reverse osmosis faucet
  • Lifetime warranty on the whole home system
Best for:
families who want clean, soft water everywhere and no more bottled water.
See the complete system
Pure Coast whole home catalytic carbon water filtration system
Catalytic carbon, no softener

Whole Home Water Filtration

A catalytic carbon tank on your main water line removes chlorine and chloramine before water reaches any shower, sink or appliance. Ends the pool smell and taste at every tap.

Priced after your free test

Add RO for purified drinking water

What's inside

  • Catalytic activated carbon media
  • Removes chlorine and chloramine
  • Reduces TTHMs and disinfection byproducts
  • Built to last 8 to 10 years
Best for:
homes that want chlorine-free showers and better-tasting water without a softener.
Learn about whole home filtration
Pure Coast salt-free water conditioner with NAC media
No salt, no electricity

Salt-Free Water Conditioner

NAC media stops scale from forming with zero maintenance and no drain line. Protects plumbing but doesn't soften the water.

Priced after your free test

Add a carbon tank for chlorine removal

What's inside

  • Clack 10x54 tank with NAC media
  • No salt, sodium or electricity
  • Zero backwash wastewater
  • Fits tight closets and condos
Best for:
condos, HOAs, low-sodium households and homes without a nearby drain.
Learn about salt-free
Pure Coast 8-stage reverse osmosis drinking water system
Under-sink drinking water

8-Stage Reverse Osmosis

Bottled-quality water from its own faucet at your kitchen sink. Reduces bromate, chromium-6, lead and over 1,000 impurities.

Priced after your free test

Included free in the Complete System

What's inside

  • 8 stages of filtration
  • Dedicated drinking water faucet
  • Filters changed every 12 to 18 months
  • 1-year manufacturer warranty
Best for:
renters, condos and anyone who wants to stop buying bottled water.
Ask about RO at your test

Not sure which one fits? Book a free in-home water test and we'll show you your results before recommending anything.

Local service

Serving Every Poway Neighborhood, From Twin Peaks to Garden Road

We schedule free water tests in Poway 7 days a week, 8am to 6pm, from Poway Road and the I-15 out to Garden Road and Highland Valley.

Tap a pin to book in that neighborhood

Find Your Poway Neighborhood

Pick an area to zoom in. Bright pins have their own local page.

Book a free water test near you

Old Poway and Central Poway

The neighborhoods around Poway Road, Old Poway Park and Twin Peaks, where many homes have original water heaters and fixtures that hard water has been scaling for years.

Neighborhoods

Old PowayTwin PeaksSouth Poway

North Poway and Lake Poway

Green Valley, Valle Verde, Stoneridge and the homes near Lake Poway. Larger houses with more bathrooms get the most from one system at the main line.

Neighborhoods

Green ValleyLake Poway areaValle VerdeStoneridge

East Poway and Rural Estates

Garden Road, Highland Valley and Poway's horse properties and acreage. We size systems for bigger lots, and homes on private wells get the same free test.

Neighborhoods

Garden RoadHighland Valley

Nearby Inland North County

The same free water test and lifetime warranty in the communities around Poway, from Rancho Bernardo to Ramona.

Areas we serve

Rancho BernardoSabre SpringsScripps RanchRancho PeñasquitosRamonaEscondido

Water softener and filtration installation in Poway ZIP codes and nearby

Poway 92064 and 92074, plus nearby Rancho Bernardo, Scripps Ranch, Rancho Peñasquitos, Ramona and Escondido. Don't see yours? Call (619) 853-6087 and we'll confirm.

ZIP codes we serve

9206492074921279212892131921299206592025
Why Pure Coast

Why Poway Homeowners Choose Pure Coast Water

A local, veteran-owned company, not a national franchise. The people who test your water are the people who install your system.

Veteran Owned, Serving Poway

Founded by a Marine Corps veteran in San Diego, with local techs who serve Poway and inland North County.

Free In-Home Testing in Poway

We test hardness, chlorine, TDS and pH at your tap, show you the results, and give you a written price. No obligation.

Lifetime Warranty on Your System

Your whole home system is covered for life. American made with NSF certified components.

Open 7 Days, 8am to 6pm

We call back within 24 hours to schedule, including weekends, so you're not waiting weeks for a test.

Poway Installs in One Visit

Most Poway installs are finished the same day, then programmed and tested before we leave.

Flat Price and Financing

One installed price with no surprise add-ons, or from $60 a month with financing on approved credit.

Three simple steps

How to Get Clean, Soft Water in Your Poway Home

Request Your Free Poway Water Test

Fill out the form or call. We'll reach out within 24 hours to pick a time that works for you.

See Your Water Results and Written Price

A local tech tests your water at the tap, recommends the right system and puts your price in writing.

Same-Day Professional Installation

We install, program and test everything, then show you how it works. Enjoy better water from day one.

Poway pricing

What Poway Homeowners Pay for Whole Home Water Treatment

No hidden fees. Want the full breakdown first? Read what a water softener actually costs in California.

Mixed bed water softener with catalytic carbon and reverse osmosis installed for a Poway home by Pure Coast Water

Mixed Bed Softener with Catalytic Carbon + 8-Stage RO, Installed

$5,665 $3,399 40% OFF

or from $60/month with financing, on approved credit

Claim My 40% Off

Starting price for most homes. Your exact price is confirmed in writing after your free water test. See our terms.

Included in your price

  • Free in-home water test
  • Mixed bed water softener with catalytic carbon, sized to your home
  • Removes hardness, chlorine and chloramine
  • 8-stage reverse osmosis drinking water faucet
  • Professional installation, usually one visit
  • Lifetime warranty on the whole home system
Softening and soap savings

Hard Water Savings Calculator for Poway Households

Hard water quietly costs you money on energy, appliances, fixtures, plumbing and soap, and bottled water adds up fast. Here's what an average Poway household on hard water can expect to save with our complete system, based on independent studies.

Pick your household size to update the estimates.

Lower Water Heater Bills

$100/year
The research

Battelle: tank water heaters lose about 4% efficiency for every 5 grains of hardness. Soft water also lets you wash in cold water.

Longer-Lasting Appliances

$90/year
The research

Water heaters, dishwashers and washing machines last longer without scale. In Battelle tests, tankless heaters failed from scale in 1.6 years of use on 26 gpg water.

Clear Faucets and Showerheads

$50/year
The research

Battelle: showerheads on hard water lost 75% of their flow in under 18 months of use.

Fewer Plumbing Repairs

$60/year
The research

Less scale inside pipes, valves and toilet parts means fewer repair calls and descaling jobs.

Half the Soap and Detergent

$150/year
The research

WQRF study: soft water cut laundry detergent by 50% and dishwasher detergent by 50% or more in very hard water.

No More Bottled Water

$250/year
The research

Americans drink 47.3 gallons of bottled water per person each year. Your included 8-stage RO faucet replaces it with purified water from the tap.

Estimated savings over time, in today's dollars
Savings category5 years10 years15 years20 years
Water heater energy$500$1,000$1,500$2,000
Appliance life$450$900$1,350$1,800
Faucets and showerheads$250$500$750$1,000
Pipes and plumbing$300$600$900$1,200
Soap, detergent and cleaners$750$1,500$2,250$3,000
Bottled water$1,250$2,500$3,750$5,000
Estimated total savings$3,500$7,000$10,500$14,000
$700
Average yearly savings in Poway
About 5 years
Payback, before salt and filters
$14,000
20-year savings estimate

What a Poway Home Spends vs. Saves, Year by Year

The blue line is everything you spend: the $3,399 system plus salt and RO filters every year. The green bars are what you save. Once the bars pass the line, the system has paid for itself.

Saved by year 20
$14,000
Spent, incl. upkeep
$6,399
Money in your pocket
$7,601
Pays for itself
Year 6

Tap any year on the chart to see its numbers. Upkeep uses about $70 a year in softener salt for a 3 to 4 person home and about $80 a year in RO filters.

How we estimate this: averages for a household on about 20 gpg water, before price increases. Energy uses Battelle's finding of about 4% water heater efficiency loss per 5 gpg plus cold-water washing. Appliance and fixture figures spread replacement costs over shorter lifespans on hard water. Soap figures use WQRF's 50% detergent reduction for laundry and dishes. Bottled water uses 47.3 gallons per person per year at about $1.50 per gallon for bulk cases, replaced by the included reverse osmosis faucet. Figures are gross savings and do not include softener salt or RO filter replacement costs. Your actual savings depend on your home, water use, appliances and local rates. Sources: Battelle Memorial Institute for the Water Quality Research Foundation (2009 to 2010); Scientific Services S/D for WQRF (2011); Beverage Marketing Corporation (2024 bottled water consumption).

Poway FAQs

Poway Water Questions, Answered Locally

Is Poway water hard?

Yes. The City of Poway's 2023 Water Quality Report shows average hardness of 235 ppm, with a range of 165 to 291 ppm. That's about 13.7 grains per gallon, very hard by Water Quality Association standards, which is why Poway homes see scale, spotty glasses and worn-out water heaters.

Where does Poway's water come from?

About 99.5% of Poway's raw water is imported through the San Diego County Water Authority from the Colorado River and Northern California, and the rest comes from Lake Poway. The city treats all of it at the Lester J. Berglund Water Treatment Plant.

Does Poway water have chlorine or chloramine?

Poway disinfects with chloramine, a mix of chlorine and ammonia, averaging 2.72 ppm in the 2023 report. Chloramine lasts longer in pipes and is harder to remove than chlorine, which is why our systems use catalytic carbon.

What contaminants are in Poway tap water?

EWG's Tap Water Database lists 12 contaminants above its health guidelines for the City of Poway, mostly disinfection byproducts like TTHMs and haloacetic acids, plus arsenic and uranium. All were below legal limits. The city's 2023 report shows arsenic averaging 1.83 ppb against a 10 ppb legal limit.

Why does Poway water leave white spots?

On top of the hardness, Poway's 2023 report shows total dissolved solids averaging 510 ppm and sodium around 91 ppm. Those minerals dry into spots and film on glass, fixtures and cars. A softener stops the scale, and RO removes most dissolved solids from your drinking water.

Do you serve rural Poway properties and horse ranches?

Yes. We install on acreage and horse properties in areas like Garden Road and Highland Valley, sized for larger homes and more water use. Homes on private wells get the same free in-home test, and we size the system to your results.

Which areas near Poway do you serve?

All of Poway, plus Rancho Bernardo, Sabre Springs, Scripps Ranch, Rancho Peñasquitos, Ramona and Escondido.

What does water treatment cost for a Poway home?

Our Mixed Bed Water Softener with Catalytic Carbon + 8-Stage Reverse Osmosis is $3,399 installed during our 40% off offer, down from $5,665, or from $60 a month with financing on approved credit. Your exact price is confirmed in writing after your free water test.

Real reviews

Poway Homeowners Rate Pure Coast Water

Verified reviews from homeowners who made the switch to cleaner, softer water.

5-star rated on Google See all reviews
Get My Free Water Test Read More on Google
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Ready to Upgrade the Water in Your Poway Home?

$5,665 $3,399 installed, or from $60/month

Book your free in-home water test and lock in 40% off before Oct 31. Book your free in-home water test and ask about this month's pricing and financing.

Book My Free Water Test or call (619) 853-6087
  • Free water test, no obligation
  • Installation included
  • Lifetime warranty