{"product_id":"whole-house-water-filter-san-jose-ca","title":"San Jose Whole House Water Filter \u0026 Softener | Catalytic Carbon + Fleck 5600SXT","description":"\u003cdiv class=\"product-description-seo\"\u003e\n\u003ch2\u003eSan Jose Whole House Water Filter \u0026amp; Softener: Built for San Jose Water Company\u003c\/h2\u003e\n\u003cp\u003eA two-stage whole house system built specifically around San Jose Water Company's published 2025 water quality data: catalytic carbon to remove the chlorine, chloramine, and disinfection byproducts, then a Fleck 5600SXT 48,000-grain softener for the 9-32 gpg hardness. Free shipping, catalog price, installed by your local plumber with free phone support from our water treatment expert.\u003c\/p\u003e\n\n\u003ch3\u003eWhat Is Actually in San Jose Tap Water?\u003c\/h3\u003e\n\u003cp\u003eSan Jose Water serves about one million people from a blend of Santa Cruz Mountains surface water and local groundwater wells. Hardness averages 9 grains per gallon and reaches 32 gpg in groundwater-served zones. Both chlorine and chloramine are used for disinfection (1.17 ppm running annual average), and disinfection byproducts measured up to 76.96 ppb TTHMs at the highest site, just under the 80 ppb federal limit. Every number on this page comes from the utility's own published 2025 water quality report (EPA system ID CA4310011). \u003ca href=\"https:\/\/sjwater.com\/ccr\/\" rel=\"nofollow noopener\" target=\"_blank\"\u003eRead the official report here\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eHow This System Solves Each Documented Problem\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard Water (9-32 gpg):\u003c\/strong\u003e 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. Stage 2: Fleck 5600SXT Softener solves 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorine + Chloramine Disinfectants:\u003c\/strong\u003e SJW states both chlorine and chloramine may be present in your water, at a running annual average of 1.17 ppm total chlorine. Stage 1: Catalytic Carbon solves 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisinfection Byproducts (TTHMs \u0026amp; HAA5):\u003c\/strong\u003e 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. Stage 1: Catalytic Carbon solves 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.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the System\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStage 1: Clack 2.5 cubic foot catalytic carbon filter (13x54 Vortech tank).\u003c\/strong\u003e Catalytic carbon is the media grade municipal treatment plants use for chloramine work. It removes chlorine, chloramine, disinfection byproducts (TTHMs, haloacetic acids), and the chemical taste and odor they cause, at every tap in the house. Non-backwashing design: no drain line, no electricity, no control valve to program. Water flows through, media does the work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStage 2: Fleck 5600SXT 48,000-grain water softener (10% crosslink resin).\u003c\/strong\u003e Removes the calcium and magnesium hardness documented in the San Jose supply. Stops scale buildup in water heaters and fixtures, ends spotted glassware and stiff laundry, and protects tankless heaters and appliances. Metered demand regeneration only regenerates when you have actually used the capacity, which keeps salt and water use low.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation: Hire a Local Plumber, We Support Them by Phone\u003c\/h3\u003e\n\u003cp\u003eWe recommend having a licensed local plumber install this system. It is 2-4 hours of standard plumbing work on your main water line, and any competent plumber in San Jose can do it. If your plumber has questions, Aidan (30+ years in water treatment) will walk them through the setup by phone. You get professional local installation plus expert system design, without paying a national water-treatment franchise's markup for the same hardware.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Not a Big-Box Cartridge Filter or a Franchise System?\u003c\/h3\u003e\n\u003cp\u003eThe $300-$700 cartridge systems sold on Amazon and at Home Depot use a few pounds of carbon in a small housing. At whole-house flow rates the water contacts the media for a fraction of a second, which is not enough for chloramine (and far too little media for a San Jose-sized water profile). They also do nothing about hardness. On the other end, franchise dealers like Culligan sell comparable tank-based equipment at $6,000-$10,000+ installed, locked to proprietary parts and service contracts. This system is the same class of hardware the franchises install (Clack and Fleck valves are the industry standards they build on), sized correctly for the documented San Jose water profile, at catalog price, with standard parts any plumber can service.\u003c\/p\u003e\n\n\u003ch3\u003eSized for the Documented San Jose Water Profile\u003c\/h3\u003e\n\u003cp\u003eThis is not a generic filter with a city name on it. The media volume, media type (catalytic vs standard carbon), and softener capacity were chosen against San Jose Water Company's published numbers for hardness and disinfectant residual. That is the whole point: you should not have to become a water chemistry expert to fix your water. The utility already published what is in it; we matched the equipment to it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFree shipping. Questions before you buy? Call or text Aidan at \u003ca href=\"tel:8004605810\"\u003e800-460-5810\u003c\/a\u003e, 7 days a week.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mid Atlantic Water","offers":[{"title":"Default Title","offer_id":54286915633436,"sku":null,"price":3395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/9523\/4605\/files\/whole-house-water-filter-san-jose-ca.jpg?v=1783540995","url":"https:\/\/midatlanticwater.net\/products\/whole-house-water-filter-san-jose-ca","provider":"Mid Atlantic Water","version":"1.0","type":"link"}