Water Treatment Systems for San Diego Homes, Priced Honestly
Whole-house water softeners, whole-house filtration, salt-free conditioners and reverse osmosis, sold at direct distributor pricing by a local, veteran-owned team. Buy online and we ship in 5 to 7 business days, or book a free in-home water test anywhere in San Diego, Riverside and south Orange County.
Our Water Treatment Systems
Every price below is the starting price for the complete system, hardware only. Pick a system to buy now, or view its details and sizes.
Not sure which system is right for your home? Get a free in-home water test
Choose Your Water Softener Size
Every softener is built on a metered Clack WS1 valve with a 1" bypass, UXC 10% cross-linked resin, catalytic carbon and a brine tank with safety valve.
Not sure which size? Compare sizes and specs or call (619) 853-6087
How Much Is Hard Water Costing You?
Scale on your water heater and appliances, extra soap and bottled water all add up. Slide to match your home and see what you lose each year, and how fast a Pure Coast system pays it back.
Your Home's Hard Water Spending
Slide each one to match what your home spends.
Cases, delivery jugs and refill stations. The included RO faucet replaces them.
Lost heater efficiency, shorter appliance life, clogged fixtures and repair calls.
Soft water cuts detergent and soap use by about half.
What Hard Water Costs You
wasted per year on untreated water
- Bottled water$720
- Appliance loss$200
- Extra soap / cleaning$240
- Payback (on $1,995 system)~3.4 yrs
What a Southern California Home Spends vs. Saves, Year by Year
Built from your sliders above. The blue line is everything you spend: the $1,995 system plus salt and RO filters every year. The green bars are what you stop wasting. Once the bars pass the line, the system has paid for itself.
Saved by year 20
$14,000Spent, incl. upkeep
$6,399Money in your pocket
$7,601Pays for itself
Year 6Tap any year on the chart to see its numbers. Upkeep uses about $70 a year in softener salt and about $80 a year in RO filters.
The Research Behind These Numbers
Independent studies, not sales math
Lower Water Heater Bills
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
In Battelle tests, tankless heaters failed from scale in 1.6 years on 26 gpg water. Dishwashers and washers last longer without it.
Clear Faucets and Showerheads
Battelle: showerheads on hard water lost 75% of their flow in under 18 months of use.
Fewer Plumbing Repairs
Less scale inside pipes, valves and toilet parts means fewer repair calls and descaling jobs.
Half the Soap and Detergent
WQRF study: soft water cut laundry and dishwasher detergent by 50% or more in very hard water.
No More Bottled Water
Americans drink 47.3 gallons of bottled water per person each year. The included 8-stage RO faucet replaces it.
How we estimate this: starting values reflect a home that buys bottled water each month, before price increases. Payback divides the $1,995 system by your yearly cost minus about $150 a year in salt and RO filters, so it matches the chart. Appliance loss uses Battelle research for the Water Quality Research Foundation. Soap uses WQRF's 50% detergent reduction. Bottled water is replaced by the included reverse osmosis faucet. The chart's cost line adds about $70 a year in softener salt and $80 a year in RO filters to a $1,995 water softener + filtration system. Your results depend on your home, water use and local rates. Sources: Battelle Memorial Institute for WQRF (2009 to 2010); Scientific Services S/D for WQRF (2011); Beverage Marketing Corporation (2024).
Why Buy From Pure Coast Water
No commission, no pressure and no surprise charges. Just clean water, done right.
Direct Distributor Pricing
No middleman and no commissioned salespeople, so you pay a fraction of typical dealer prices.
Veteran Owned and Local
A San Diego, veteran-owned team that tests, installs and supports systems across Southern California.
Lifetime Limited Warranty
Every system is backed by a lifetime limited warranty, plus our 30-day guarantee.
| Compare | Pure Coast Water | Typical dealer |
|---|---|---|
| Upfront pricing | Posted online | Hidden until the in-home pitch |
| Sales approach | No commission | Pushy, commissioned upsells |
| Valve and parts | Clack, industry standard | Often proprietary |
| What you pay | From $350 to $2,695 | Often $5,000 to $10,000 |
| Warranty | Lifetime limited | Varies |
How Ordering Works
Choose or test
Pick your system online, or book a free in-home water test and we'll recommend one.
Order securely
Check out online with our secure Stripe checkout. Sales tax is calculated at checkout.
Fast delivery
We confirm your details within 24 hours and ship in 5 to 7 business days.
Install and enjoy
Our local team installs in Southern California, quoted separately, or your plumber connects it.
Water Treatment Questions, Answered
Which water treatment system do I need?
It depends on your water and your goals. For hard water scale plus chlorine taste, choose the water softener + filtration system. For chlorine and chloramine only, choose whole house filtration. For scale protection with no salt, choose a salt-free conditioner or the Pentair 3-stage system. For purified drinking water, add reverse osmosis. Not sure? Book a free in-home water test.
Do your prices include installation?
No. Prices are for the complete system, hardware only. In Southern California, professional installation by our local, veteran-owned team is quoted separately at your free water test, or your own licensed plumber can install it.
How fast do systems ship?
Systems ship in 5 to 7 business days. Water softener, filtration and salt-free systems are $149 for SoCal delivery or $259 for nationwide shipping. Reverse osmosis ships free.
What's the difference between a water softener and a salt-free conditioner?
A water softener removes hardness minerals using salt, for soft water and spot-free glass. A salt-free conditioner keeps the minerals in your water and changes how they behave so they don't stick as scale, with no salt, electricity or drain.
What warranty do your systems include?
Every system includes a lifetime limited warranty, plus our 30-day guarantee.
Which areas do you serve?
We test and install throughout San Diego County and within a 90-mile radius, including North County, the South Bay, Temecula, Murrieta, Riverside and south Orange County. We ship systems anywhere in the continental U.S.
Not Sure Where to Start? Test Your Water Free
Our local, veteran-owned team will test your water at home and recommend the right system, with no pressure and no commission.