Whole-Home Carbon Filtration Tank

A whole-home carbon filtration tank is $1,150 installed, or $1,450 with catalytic media. It is a full-size tank plumbed into your main water line, built for city water, and aimed at the taste and smell of chlorine or chloramine at every fixture in the house. It is not a softener.

A vessel of media and nothing else

The system is one tall pressure tank holding a bed of carbon media, a control head on top of it and a bypass valve. Water from the street passes through the bed on its way to the rest of the house, and on a set schedule the head reverses the flow to rinse the bed and sends the rinse water to a drain. That is the whole machine: no cartridge to buy, no housing to unscrew, nothing under your sink.

Bed depth is the reason this is a tank and not a cartridge. Whole-house flow moves fast, and a media bed deep enough to work at that flow rate will not fit in an under-sink canister. It is also why the media choice below is the real decision here.

Standard media or catalytic media — your supply decides

Cedar Rapids disinfects with chloramine rather than free chlorine, and Robins has no wells of its own and buys City of Cedar Rapids water, so both sit in the same category. Catalytic carbon is the media suited to a chloraminated supply; ordinary activated carbon works on chloramine, but less thoroughly. On those two supplies we quote the $1,450 build.

Marion and Hiawatha disinfect with plain chlorine, where standard activated carbon is the right media. We would rather say that than quote a catalytic tank to a house that gains nothing from one. Two ways the media is priced, so the numbers are not confusing: $300 more as a standalone tank, or $150 more as an upgrade inside a full standard system on city water.

Worth saying out loud about Cedar Rapids: the utility lime-softens the supply before it reaches you, and the city’s own FAQ describes the finished water as moderately hard at 6 to 9 grains per gallon. Plenty of households there want carbon and nothing else, and that is a legitimate answer.

Included in $1,150 and $1,450

Our systems are certified to the NSF/ANSI standards. Financing is available at 0%, military and first responders take $100 off, and travel is free for the first 50 miles from Marion and $1 per mile after that. The price does not expire.

Who buys this tank

• City-water households whose complaint is how the water tastes and smells at every fixture, the shower and bath included — which a drinking-water system never reaches.
• Households that already own a working softener and want carbon added ahead of it.
• Anyone who wants the smallest whole-home system we sell rather than a bundle.

Homes this tank is wrong for

• Hard water. Carbon has no effect on calcium and magnesium, so spotted glassware, film on the shower door and soap that will not lather are untouched by it. That is a water softener question: $1,900 on its own, or $2,500 for a single system that does both jobs.
• Private wells. This is a city-water product. A well normally brings hardness, often iron and sometimes sulfur, and our answer there is a dual-tank well build — see well water treatment cost. Iron and sulfur systems we quote after your free water test rather than publishing a number, because the right build depends on the test.
• Nitrate. Iowa State University extension materials point to three home technologies for nitrate: reverse osmosis, distillation and anion exchange. A carbon bed is not one of the three.
• One tap. If the only fixture that bothers you is the kitchen sink, an $800 reverse osmosis system is cheaper and better aimed. Start with why tap water tastes like chlorine.

Where it goes, and what install day looks like

The tank sits near where the main line enters the house and ahead of the water heater, so hot and cold both run through it. If you already own a softener, carbon goes in front of it. It needs a drain connection for the backwash and an outlet nearby for the control head, and most installs take about half a day.

Installation is performed by licensed local plumbing professionals we vet, schedule and stand behind, and we are insured and bonded. Because the tank rinses its own bed, city-water homes rarely need the $500 pre-sediment filter ahead of it — a private well is the legitimate use for that part, and we would rather tell you that than sell you one.

Media is a consumable, and here is what that costs

Carbon does not last forever. The bed loses capacity with use, and when it is spent the fix is a tank swap at $1,000, generally somewhere in the seven-to-twelve-year range. Nothing needs buying in between — no cartridges, no subscription — but that swap is a real future cost, and we would rather you plan for it now than hear about it later.

If something seems wrong and nobody knows what yet, a diagnostic service call is $199, waived the first year on systems we installed. If the fault is already known it is a $99 trip charge plus the part. That trip charge pays for the drive, not the repair — a warranty part itself is still free.

Get a real number for your own house

The in-home water test is free and comes with a written price the same visit — no second appointment, and the price does not expire. Call or text 319-319-6566, email ryan@kindwaterco.com, or start with an instant quote. Every figure above also sits on our published filtration price list; the national dealer networks route their pricing through an in-home visit instead. Kind Water Co. is family-owned, founded in 2021 by Ryan Brunton, and based in Marion.