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

Gaslamp Quarter Water Softener and Filtration Company

Local, veteran-owned water treatment for downtown San Diego, from the Gaslamp to Little Italy.

The Gaslamp Quarter and downtown San Diego are on City of San Diego water, a blend of imported Colorado River and State Water Project water and local reservoir water. It averages about 13 grains per gallon of hardness, is disinfected with chloramine, and EWG lists 14 contaminants above its health guidelines. Pure Coast installs water softeners, catalytic carbon filtration, salt-free conditioners and reverse osmosis for downtown 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
Gaslamp Quarter favorite 40% OFF

Gaslamp Quarter 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
Gaslamp Quarter water report

Gaslamp Quarter Water Quality: What's Really in Your Tap Water

Downtown San Diego, including the Gaslamp Quarter, is served by the City of San Diego Public Utilities Department. The water meets state and federal standards, but it's very hard and carries chloramine and disinfection byproducts. Downtown is mostly condos and lofts, so the right fix is often at the unit level: under-sink RO for drinking water and compact or salt-free systems where the building allows. EWG lists 14 contaminants above its stricter health guidelines across the city system.

12.6-13.4gpg
City plant hardness in 2024
479-526ppm
Dissolved solids, Alvarado and Miramar
14above
EWG guidelines, city system
Contaminants above EWG health guidelines in City of San Diego water serving the Gaslamp Quarter, and what removes them
ContaminantCarbon stageRO faucetPure Coast system
Bromate
Bromodichloromethane
Bromoform
Chlorite
Chloroform
Chromium-6 (hexavalent)
Dibromoacetic acid
Dibromochloromethane
Dichloroacetic acid
Haloacetic acids (HAA5)
Haloacetic acids (HAA9)
Total trihalomethanes (TTHMs)
Trichloroacetic acid
Uranium

Sources: EWG Tap Water Database, City of San Diego (PWS CA3710020), 33 contaminants detected and 14 above EWG guidelines, 2013 to 2023 data; and the City of San Diego 2024 Annual Drinking Water Quality Report (hardness 216 mg/L at the Alvarado plant and 229 mg/L at Miramar, about 12.6 and 13.4 grains per gallon; TDS 479 and 526 ppm; chloramine averaging 1.73 ppm in the pipes). 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 Gaslamp Quarter Homes

Four ways to fix Gaslamp Quarter 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 Downtown San Diego, From the Marina to Cortez Hill

We schedule free water tests downtown 7 days a week, 8am to 6pm, from the Gaslamp and East Village to Little Italy, Bankers Hill and Barrio Logan.

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Find Your Gaslamp Quarter Neighborhood

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

Book a free water test near you

Gaslamp Quarter and East Village

High-rise condos, lofts and historic buildings, where under-sink RO and unit-level options usually fit best.

Neighborhoods

Gaslamp QuarterEast Village

Little Italy, Columbia and the Marina

Bayfront and Little Italy condos and townhomes. We'll check your building's plumbing and HOA rules before recommending anything.

Neighborhoods

Little ItalyColumbiaMarina DistrictCortez Hill

Bankers Hill, Sherman Heights and Barrio Logan

Victorian homes, townhomes and family houses on the edges of downtown, where whole home systems at the main line are usually an easy fit.

Neighborhoods

Bankers HillSherman HeightsBarrio Logan

Water softener and filtration installation in downtown San Diego ZIP codes

Downtown and the Gaslamp 92101, plus Bankers Hill 92103, Sherman Heights 92102 and Barrio Logan 92113. Don't see yours? Call (619) 853-6087 and we'll confirm.

ZIP codes we serve

92101921039210292113
Why Pure Coast

Why Gaslamp Quarter 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 Gaslamp Quarter

Founded by a Marine Corps veteran in San Diego, with local techs who work in downtown condos, lofts and historic buildings.

Free In-Home Testing in Gaslamp Quarter

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.

Gaslamp Quarter Installs in One Visit

Most Gaslamp Quarter 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 Gaslamp Quarter Home

Request Your Free Gaslamp Quarter 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.

Gaslamp Quarter pricing

What Gaslamp Quarter 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 Gaslamp Quarter 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 Gaslamp Quarter 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 Gaslamp Quarter 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 Gaslamp Quarter
About 5 years
Payback, before salt and filters
$14,000
20-year savings estimate

What a Gaslamp Quarter 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).

Gaslamp Quarter FAQs

Gaslamp Quarter Water Questions, Answered Locally

Is downtown San Diego water hard?

The City of San Diego's 2024 report shows its Alvarado plant averaging 216 mg/L of hardness and its Miramar plant 229 mg/L, about 12.6 to 13.4 grains per gallon. That's very hard by Water Quality Association standards.

I live in a high-rise condo. Can I get a whole home system?

Usually not at the building's main line, since that serves every unit. What works in most condos is an 8-stage reverse osmosis faucet under your kitchen sink, and sometimes a compact unit-level system if your plumbing and HOA allow it. We'll check your unit at the free test.

Does downtown water have chlorine or chloramine?

The City of San Diego keeps chloramine, a mix of chlorine and ammonia, in the pipes to your tap, averaging 1.73 ppm in 2024. It's harder to remove than chlorine, which is why our systems use catalytic carbon.

What contaminants are in downtown San Diego tap water?

EWG's Tap Water Database lists 14 contaminants above its health guidelines for the City of San Diego system, mostly disinfection byproducts like TTHMs and haloacetic acids, plus bromate, chlorite, chromium-6 and uranium. All were below legal limits, but EWG's guidelines are stricter health-based goals.

Do I need HOA approval?

For under-sink RO, usually not, since it doesn't change the building's plumbing. For anything at your unit's water line, your HOA may want to approve it first. We'll give you the details your HOA or property manager needs.

Where does downtown's water come from?

Downtown is part of the City of San Diego water system, which treats imported Colorado River and State Water Project water and local reservoir water before it reaches your building. The city's water quality line, (619) 515-3500, can confirm which plant serves your address.

Which areas around downtown do you serve?

The Gaslamp, East Village, Little Italy, Columbia, the Marina, Cortez Hill, Bankers Hill, Sherman Heights and Barrio Logan, plus North Park, Mission Valley and Coronado.

What does water treatment cost downtown?

For condos, an under-sink RO faucet is the most common choice, priced after your free test. For houses and townhomes with their own main line: 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

Downtown San Diego Residents Rate Pure Coast

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 for Better Water Downtown?

$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