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San Jose Whole House Water Filter & Softener | Catalytic Carbon + Fleck 5600SXT

Built for San Jose's water. Removes the chlorine taste and smell, stops the scale, and softens every tap in the house.

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🇺🇸 Made in USA

San Jose Whole House Water Filter & Softener | Catalytic Carbon + Fleck 5600SXT

Built for San Jose's water. Removes the chlorine taste and smell, stops the scale, and softens every tap in the house.

Video thumbnail
Watch This Before Buying Meet Aidan, your water treatment expert
You save $295.00 as a complete system
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Official 2025 data What's in San Jose water
9-32 gpg Hardness
Chlorine + chloramine Disinfectant
Up to 76.96 ppb Trihalomethanes (TTHMs)
Up to 35.8 ppb Haloacetic acids (HAA5)
Aidan
Questions? Ask Aidan. This system is already matched to San Jose's published water data. Call or text to confirm fit or plan your install.

Whole House Carbon Filter

  • Clack C1190 non-backwashing upflow valve, no electricity, no drain line, no backwash cycle, and no programming
  • 1.5 cubic feet of catalytic activated carbon, the same municipal-grade media used in city water plants for chlorine, taste, and odor
  • Vortech mineral tank (10" x 54"), gravel-free design for better flow and easier media service
  • Bypass valve with 1" connections, easily reduced to 3/4"
  • Fillport and service funnel for adding media without removing the valve

Fleck 5600SXT 48,000 Grain Water Softener

  • Fleck 5600SXT digital control valve, NSF certified, electronic demand regeneration with backlit LCD and 48-hour power backup capacitor
  • 1.5 cubic feet of 10% crosslink resin, chlorine-resistant and longer-lasting than standard 8% resin
  • 48,000 grain capacity, sized for 5 to 30 grains per gallon hardness
  • Vortech mineral tank, gravel-free design
  • 18" x 33" brine tank with safety float and auto-shutoff
  • 1" stainless steel bypass valve, pre-installed on the control head

Included With Both Systems

  • Free shipping to all lower 48 states, ships freight on a pallet
  • Fill funnel for media and resin
  • 7-day tech support, call or text Aidan at 800-460-5810 before, during, and after installation
Built for city or well water. On city water this pair removes chlorine, taste, and odor while softening hardness. On well water with clean baseline chemistry it polishes taste and removes dissolved organics while softening. If your well has iron, sulfur smell, or low pH, those need pre-treatment first, call us and we will size it.

Carbon Filter

Control ValveClack C1190 non-backwashing upflow
MediaCatalytic activated carbon, 1.5 cubic feet
Tank Dimensions10" diameter x 54" tall
Peak FlowUp to 7 to 8 GPM
Media LifeRoughly 3 to 5 years on typical city water
Electricity / DrainNone required
Connections1" male threaded (reducible to 3/4")
RemovesChlorine, taste, odor, VOCs, disinfection byproducts
CertificationNSF/ANSI 61
Warranty5-year valve / 10-year tank

Water Softener

Control ValveFleck 5600SXT electronic demand
Resin10% crosslink cation resin, 1.5 cubic feet
Grain Capacity48,000 grains
Hardness Range5 to 30 grains per gallon
Tank TypeVortech, gravel-free
Brine Tank18" x 33" with safety float / auto-shutoff
RegenerationDemand-based, counts gallons
Power Backup48-hour capacitor
Connections1" stainless steel bypass (pre-installed)
CertificationNSF/ANSI 61
Warranty5-year valve / 10-year tank

Both systems made in the USA.

Installation Order (This Matters)

The carbon filter goes before the softener. Chlorine slowly degrades softener resin, so removing it first with carbon protects the resin and extends its life. The correct sequence is:

  1. Pressure tank or city water main (existing)
  2. Sediment filter, if you have one (recommended)
  3. Carbon filter, removes chlorine, taste, and odor
  4. Water softener, removes hardness from the now dechlorinated water

Carbon Filter Install

  1. Shut off the main water supply and relieve pressure
  2. Position the tank and connect inlet and outlet using 3/4" CPVC or push-fit fittings
  3. Hand-tighten the valve, then only a quarter to half turn with channel locks so you do not crack the tank lip
  4. Open the bypass slowly and flush for 5 to 10 minutes until water runs clear

Water Softener Install

  1. Position the softener after the carbon filter
  2. Connect inlet and outlet to the main water line
  3. Run a drain line from the valve to a floor drain, utility sink, or outside
  4. Plug in to a standard 120V outlet
  5. Add salt to the brine tank and program the valve (call Aidan for the settings)
  6. Run a manual regeneration before putting the system in service
Most homeowners complete both systems in 3 to 5 hours. If you hire a plumber, they can call Aidan directly for programming help. Call 800-460-5810 for step-by-step support, 7 days a week.

Carbon Filter

  • No filter changes, no backwash, no programming. The upflow design runs maintenance-free day to day.
  • Replace the carbon media every 3 to 5 years on typical city water. The media is poured in through the fillport, the tank does not have to come out of line.
  • If you notice chlorine taste or smell returning at the tap, the media is spent and it is time to refresh.

Water Softener

  • Add salt as needed. Most households use a 40 lb bag every 4 to 8 weeks depending on hardness and usage.
  • Regeneration is automatic. The Fleck 5600SXT counts gallons and regenerates only when the resin is exhausted, no timer to adjust.
  • The 10% crosslink resin lasts 12 to 15+ years with normal use, and removing chlorine upstream with the carbon filter extends it further.
Questions about maintenance? Call or text 800-460-5810, available 7 days a week.

What's In San Jose Water, and Which Stage Fixes It

From the utility's own published data. Tap any card for the numbers.

9-32 gpg
Hard Water (9-32 gpg)
Scale on heaters and fixtures; 'very hard' in groundwater zones.
Fixed by
Stage 2: Fleck 5600SXT Softener
The data & how it works
What the data shows
SJW's 2025 report lists hardness from 9 gpg (surface water) up to 32 gpg in groundwater-served zones. Anything over 10.5 gpg is 'very hard' on the USGS scale.
Why it matters
Scale coats water heater elements and tankless heat exchangers, clogs fixtures, spots glassware, and shortens appliance life. In the hardest SJW zones it is among the hardest municipal water in the Bay Area.
How this stage fixes it
48,000-grain ion-exchange softener removes the calcium and magnesium entirely, metered so it only regenerates when capacity is actually used. Sized to handle even the 32 gpg groundwater zones.
1.17 ppm avg
Chlorine + Chloramine Disinfectants
Chemical taste and odor cartridge filters barely touch.
Fixed by
Stage 1: Catalytic Carbon
The data & how it works
What the data shows
SJW states both chlorine and chloramine may be present in your water, at a running annual average of 1.17 ppm total chlorine.
Why it matters
Chloramine is the harder of the two to remove: standard carbon cartridges barely touch it. It carries a chemical taste and odor into every glass, shower, and load of laundry.
How this stage fixes it
Catalytic carbon is the media grade designed specifically for chloramine: its modified surface catalyzes the breakdown of chloramine that standard activated carbon misses. 2.5 cubic feet gives the contact time whole-house flow rates need.
Up to 76.96 ppb
Disinfection Byproducts (TTHMs & HAA5)
TTHMs just under the 80 ppb federal limit.
Fixed by
Stage 1: Catalytic Carbon
The data & how it works
What the data shows
The 2025 report shows total trihalomethanes up to 76.96 ppb at the highest sample site, just under the 80 ppb federal limit, and haloacetic acids up to 35.8 ppb.
Why it matters
DBPs form when disinfectants react with organic matter. They are regulated because long-term exposure is what the limits are written around, and SJW's highest readings sit close to the line.
How this stage fixes it
Activated carbon adsorbs THMs and haloacetic acids as water passes through the 75-pound media bed, reducing them at every tap in the house, including showers where THMs volatilize into the air you breathe.
Installation: hire a local plumber (2-4 hours of standard work). This system arrives pre-configured for your water. Any licensed plumber can install it, and Aidan will walk your plumber through the setup by phone if they have questions: 800-460-5810. You get local installation with expert system design, without paying a water treatment franchise's markup.

What's In This Package

Installed in this order on your main water line.

Stage 1
Clack 2.5 Cubic Foot, Non Backwashing Whole House Carbon Filter
Clack 2.5 Cubic Foot, Non Backwashing Whole House Carbon Filter
Polishes taste, odor, chlorine, and VOCs
$1,695.00 individually
View this system
Stage 2
Fleck 5600SXT 48,000 Grain Electronic Demand Deluxe Water Softener
Fleck 5600SXT 48,000 Grain Electronic Demand Deluxe Water Softener
Removes hardness minerals, protects fixtures and appliances
$1,995.00 individually
View this system
Purchased separately: $3,690.00
Complete system package: $3,395.00
You save $295.00 when purchased as a complete system

Video Guides

Watch our carbon filter and water softener guides has 32 years of industry experience.


Why San Jose Homes Pair Catalytic Carbon With a Softener

The two documented problems in San Jose Water: disinfectant chemistry and hardness. One system fixes both.

San Jose Water delivers water that meets every federal and state standard. It also delivers, by its own 2025 report, water with 9 to 32 grains per gallon of hardness and both chlorine and chloramine disinfectants, with trihalomethane readings at the highest sample site of 76.96 ppb against a federal limit of 80. Those are the two things homeowners actually notice: the chemical taste and smell at the tap, and the scale that shortens the life of water heaters, dishwashers, and fixtures. Silicon Valley's groundwater-served neighborhoods (much of Willow Glen, Cambrian, Almaden) get the hardest water in the system. This package addresses both with commercial-grade equipment: a 2.5 cubic foot catalytic carbon filter, the media grade built for chloramine, followed by a Fleck 5600SXT 48,000-grain softener sized for even the 32 gpg zones. No proprietary parts, no service contract, and Aidan supports you (or your plumber) by phone for the life of the system.
No Electricity (Carbon Filter)
Removes Chlorine, Taste & Odor
Fleck 5600SXT Valve
10% Crosslink Resin
Electronic Demand Regen
NSF Certified Components
Made in USA
Mid Atlantic Water Trust Logos
Feature Our System Others
Carbon Valve Clack C1190 Non-Backwashing Generic Timer Valve
Carbon Media Catalytic Carbon (Municipal Grade) Low-Grade Generic GAC
Carbon Tank Vortech Gravel-Free (10x54) Standard Gravel-Bedded
Softener Valve Fleck 5600SXT Electronic Demand Timer-Based Regeneration
Softener Resin 10% Crosslink (Chlorine-Resistant) Standard 8% Resin
Regeneration Demand-Based (Counts Gallons) Timer (Wastes Salt & Water)
Brine Tank 18x33 with Safety Float Smaller, No Auto-Shutoff
Expert Support 7-Day Phone, Text & Email Limited or None
Warranty 5-Year Valve + 10-Year Tank (Both) 1-Year Limited
Carbon Valve
✅ Us Clack C1190 Non-Backwashing
❌ Them Generic Timer Valve
Carbon Media
✅ Us Catalytic Carbon (Municipal Grade)
❌ Them Low-Grade Generic GAC
Carbon Tank
✅ Us Vortech Gravel-Free (10x54)
❌ Them Standard Gravel-Bedded
Softener Valve
✅ Us Fleck 5600SXT Electronic Demand
❌ Them Timer-Based Regeneration
Softener Resin
✅ Us 10% Crosslink (Chlorine-Resistant)
❌ Them Standard 8% Resin
Regeneration
✅ Us Demand-Based (Counts Gallons)
❌ Them Timer (Wastes Salt & Water)
Brine Tank
✅ Us 18x33 with Safety Float
❌ Them Smaller, No Auto-Shutoff
Expert Support
✅ Us 7-Day Phone, Text & Email
❌ Them Limited or None
Warranty
✅ Us 5-Year Valve + 10-Year Tank (Both)
❌ Them 1-Year Limited
Aidan

Got a Question About Your System?

Whether you need help with installation order, plumbing layout, programming the Fleck 5600SXT, refreshing the carbon, or troubleshooting either system, Aidan is available 7 days a week. Real answers from someone who has been doing this for 29+ years.

📞 Call Us 800-460-5810
✉️ Email Support support@midatlanticwater.net
🕒 Live Hours 7 days a week

Frequently Asked Questions

Groundwater-served zones, which include much of Willow Glen, Cambrian, and Almaden, run 21-32 gpg per SJW's 2025 report, among the hardest municipal water in the Bay Area. Surface-water zones served from the Santa Cruz Mountains run around 9 gpg, which is still 'hard' on the USGS scale. This softener is sized for the hardest zones, so it works anywhere in the system.

Both. The Stage 1 tank uses catalytic carbon, not standard activated carbon. Catalytic carbon's modified surface breaks down chloramine, which ordinary carbon cartridges largely miss. This matters in San Jose because SJW uses both disinfectants depending on source and season.

SJW has monitored PFAS since 2019 and reports its delivered water meets all current standards; it is building a dedicated PFAS treatment facility at Williams Station. Activated carbon is one of the EPA-recognized technologies for reducing PFAS, so this system's 75-pound carbon bed provides meaningful reduction, but we do not sell it as a certified PFAS removal system. If PFAS is your primary concern, test your tap water first and call us; we will give you a straight answer on what you need.

We recommend it. The install is 2-4 hours of standard work on your main water line: cut in, connect the two tanks in series, run the softener drain line. Any licensed plumber can do it, and if they have questions Aidan will walk them through it by phone at 800-460-5810. Handy homeowners with basic plumbing experience also self-install these regularly.

Cartridge systems hold a few pounds of carbon. At whole-house flow rates the water is in contact with the media for a fraction of a second, which is not enough to remove chloramine, and they do nothing about hardness. This system holds 2.5 cubic feet (about 75 pounds) of catalytic carbon plus a full 48,000-grain softener. It is a different class of equipment.

Franchise dealers install comparable tank-based systems for $6,000 to $10,000 or more, then lock you into proprietary parts and service plans. This system uses the industry-standard Clack and Fleck valves those companies build on, costs $3,395 shipped, and any plumber can service it with off-the-shelf parts.

The softener needs salt added to the brine tank every 1-2 months (about $7 a bag). The catalytic carbon media lasts roughly 5-7 years on municipal water before a rebed, which costs a few hundred dollars in media, not a new system. No filters to change monthly, no electricity for the carbon stage.

No, and we will not tell you otherwise. San Jose Water Company meets federal drinking water standards, and the numbers on this page are from their own published report. This system addresses the things that are legal and normal in municipal water but that many homeowners do not want: disinfectant taste and odor, disinfection byproducts, and hard water scale. It is a comfort and home-protection upgrade grounded in your town's actual data, not a safety scare.

San Jose Whole House Water Filter & Softener | Catalytic Carbon + Fleck 5600SXT
San Jose Whole House W... $3,395.00

Why Our Package Costs More

Professional-Grade Components vs. Budget Combos

What You Get With Budget Combos

Budget carbon-and-softener combos cut corners where it counts: low-grade generic carbon that exhausts fast, timer-based regeneration that wastes salt and water, standard 8% resin that degrades sooner, and gravel-bedded tanks with lower flow.

Worse, most online sellers offer little real support after the sale. When your plumber needs help programming the valve, or you are not sure when to refresh the carbon, you are on your own.

The Real Cost Comparison

Budget Carbon + Softener Combo
$1,500-2,000
  • Lifespan: Fails in 3-4 years
  • Result: Frequent repairs, poor water quality, leaks
  • Support: None
$0.55-0.91/day (more salt, faster carbon burnout)
Best Long-Term Value
Our Professional Package
$3,195
  • Lifespan: Lasts 15+ years
  • Result: Done right the first time, peace of mind
  • Support: Lifetime USA Support
$0.55/day (12-15+ year softener, protected resin)

Factor in the better components, the longer resin life from removing chlorine upstream, the salt and water saved by demand regeneration, and the unlimited expert support, and this package delivers better long-term value than budget combos that exhaust faster and leave you without help.

What You Get With Our System

This package pairs a Clack C1190 non-backwashing carbon filter with municipal-grade catalytic carbon and the Fleck 5600SXT, the most popular residential softener valve in America. Both use gravel-free tanks for better flow, and the softener uses 10% crosslink resin that outlasts standard 8% by 20 to 30 percent.

You also get 7-day-a-week expert support from Aidan for sizing, installation, programming, and troubleshooting. We have been helping homeowners solve water problems for 29+ years.

Contact Us
800-460-5810

We're here to help.

1-Year Risk-Free Guarantee

Thousands of Homeowners Trust This Package

If this carbon filter and water softener package fails to clean up your chlorine, taste, and odor and eliminate hard water within 30 days of installation, contact us and we will work with you to resolve it, whether that means troubleshooting your setup, adjusting programming, replacing a component, or issuing a full refund. No shipping 300+ pounds of wet equipment back to a warehouse. No restocking fees. No runaround.

10,000+ Systems Installed
455+ Verified Reviews
29+ Success Rate

After 29+ years of selling and supporting water treatment systems, we know what works. We pair proven components, a Clack carbon filter, the Fleck 5600SXT, gravel-free tanks, and 10% crosslink resin, because that combination delivers years of trouble-free performance.

The Industry "Return Policy" Trap +

Most online retailers offer a return policy that requires you to ship both systems back at your expense, that is 300+ pounds of wet equipment on a pallet. After paying for return freight, you often find a 15 to 25 percent restocking fee on top. It is designed to make returns impractical. For something as essential as your home's water, you should not have to gamble.

How Our Real Guarantee Works
1
It Doesn't Fix the Water

If you still have chlorine taste and odor or hard water after installation, that's on us. Both systems should be performing, period.

2
You Call Us, We Fix It

We troubleshoot with you, water test results, installation order, valve settings, flow rates. Most issues are resolved with a simple adjustment.

Full Refund, No Hassle

If we cannot resolve the issue, you get a full refund. We handle the logistics. You do not ship anything back. That is the difference between a real guarantee and a return policy.

Aidan

This is the pairing I recommend for most city water homes. The carbon strips the chlorine and the chemical taste, and it protects the softener resin while it's at it. Then the Fleck 5600SXT, the most proven softener valve there is, takes out the hardness. Clean, soft water at every tap.

Aidan
5.0
★★★★★ 455 Verified Reviews
29 Years in Business
10,000+ Homeowners Served
Real installs, real customers, real photos
Customer install: Fleck 2510AIO iron filter
★★★★★
Solved my very high iron issues

"I had well water with over 20 ppm ferrous and 7 ppm of ferric iron, plus manganese and some sulfur. Local water companies rejected me, said they couldn't help. I purchased two Fleck 2.5 cu. ft. 2510AIO iron filter tanks with Katalox-Light. Problem solved."

Amy H. Verified buyer · Fleck 2510AIO Iron Filter
Customer install: Clack 2.5 acid neutralizer
★★★★★
Corrosive water resolved

"New house, brass fittings on my Pex were all corroding. Tested the water, acidic at 5.5. Found Mid Atlantic Water YouTube videos which were very helpful, ordered the non-back washing 2.5. Easy install, water tests great now."

William H. Verified buyer · Clack 2.5 Acid Neutralizer
Customer install: Fleck 2510AIO iron filter
★★★★★
Amazing set up

"Straight forward installation. In, out, and the drain. Ran a back wash cycle then put it online and it works GREAT. Cleaned out the iron and raised the pH to 7.5. Culligan tried to sell me something twice the price."

Dustin H. Verified buyer · Fleck 2510AIO Iron Filter
Customer install: full water treatment system
★★★★★
Outstanding help and products

"Three contractors and two other suppliers reviewed my well report. Quotes ranged from $5,000 to $10,000. Then I found Mid Atlantic. Aidan reviewed the report and recommended a complete system. Same equipment, fraction of the cost, and the support was real."

Mark H. Verified buyer · Full Treatment System
Customer install: Clack 2.5 acid neutralizer
★★★★★
Does exactly what it's supposed to do

"Easy, bullet-proof installation. No moving parts. Raised my pH from 6.8 to a perfect 7.6. I had previously installed the same unit in my daughter's water system. Her pH was 5.2. Following Aidan's videos, both installs went smoothly."

Dale H. Verified buyer · Clack 2.5 Acid Neutralizer
Customer install: Clack 2.5 acid neutralizer
★★★★★
My water is fixed

"Super easy install. Shouldn't have to service it for approximately 24-36 months based on my water usage. Tank is solid, fittings are clean, no leaks. Exactly what was advertised."

Henry Hall Verified buyer · Clack 2.5 Acid Neutralizer
1-Year Risk-Free Satisfaction Guarantee
5 & 10 Year Warranties on Equipment
Free Lifetime US-Based Phone & Text Support
30-Day Returns, No Questions

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