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Self-cleaning carbonWhole Home Systems
Dual Tank for City Water
Our largest system. A separate carbon tank that cleans itself.
Two tanks instead of one: a dedicated softening tank and a dedicated carbon tank, bridged from a single ProValve. Splitting the media means each does its job properly instead of competing for space, and the carbon tank backwashes itself clean.
Best for: Large homes, high usage, or heavily chlorinated city water

Inside the system
Features
- Dedicated softening tank plus a dedicated carbon tank
- Self-cleaning carbon tank, a patented dual-tank design
- One Blue Giant ProValve bridged across both tanks
- USA-made 10% crosslinked resin and coconut-shell carbon
- Polishing gravel base prevents channeling
- Free installation and a lifetime warranty
What the carbon reduces
- Chlorine and chloramines
- THMs and disinfection byproducts
- PFAS / PFOA / PFOS
- VOCs: benzene, toluene, xylene
- Pesticides and herbicides
- Hydrogen sulfide odor
- Heavy metals
- Taste and odor compounds
Full specifications
Key specifications
| Softening capacity | 48,000 grains |
| Valve flow rate | 30 GPM |
| System flow rate | 27 GPM |
| Configuration | Two tanks: one resin, one carbon |
| Resin volume | 1.5 cu ft |
| Media tank (D×H) | 10" × 54" |
| Brine / salt tank | 15" × 35" square |
| Bypass size | 1" |
| Backflush | Both tanks, to extend system life |
| Shipping weight, system | 125 lbs |
| Shipping weight, brine | 17 lbs |
| Best suited to | High usage, pools, continuous demand |
Operating requirements
| Operating pressure | 30 to 125 PSI |
| Water temperature | 40° to 110°F (4° to 43°C) |
| Electrical | 120V / 60Hz, 12V 650mA transformer |
| Inlet turbidity | Under 5 FTU |
| Service flow | 27 GPM at 15 PSI pressure drop |
| Backwash flow | 3.0 gal/min |
| Regeneration | Upflow counter-current, demand-initiated metering |
Components, sourcing & warranty
| Control valve | Blue Giant ProValve, ceramic disc valve with 72-hour memory backup |
| Mineral tank | Fiberglass pressure tank, made in USA |
| Softening resin | USA-made 10% crosslinked strong-acid cation resin, WQA Gold Seal |
| Carbon media | Granular activated coconut-shell carbon |
| Support bedding | NSF-certified polishing gravel |
| Assembly | Fort Worth, Texas |
| Certifications | NSF/ANSI 44, NSF/ANSI 42, NSF/ANSI 61 |
| Tank warranty | Lifetime: media tanks, storage tanks and brine tank |
| Ceramic disc warranty | Lifetime |
| Control valve warranty | 5 years: valve body and circuit board |
| Media warranty | 5 years: resin and carbon |
| Labor warranty | 1 year from date of purchase |
| Installation | Included, by our own installers, not subcontractors |
Warranty on this system
Specifications from the manufacturer's documentation. Component brands and certifications are those of their respective manufacturers. Full warranty terms and a printable spec sheet available on request.
Free water test
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- Hardness, chlorine, TDS, iron and pH tested on the spot
- Written results you keep either way
- Evening and Saturday appointments available
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More angles
Up close

Dual tank system cutaway showing both media beds side by side
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Dual tank system with brine tank and control valve
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Also in whole home systems
Worth a look alongside it
Standard Whole-Home Softener + Filtration
48,000 grains. Soft water and chlorine filtration in one tank.
View details →XL Whole-Home Softener + Filtration
64,000 grains. Same system, more capacity between regenerations.
View details →Dual Tank for Well Water
Built for iron, sulfur and that rotten-egg smell.
View details →Salt-Free Water Conditioner
No salt, no drain, no maintenance. Keeps the minerals in.
View details →Reviews
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