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Clack Water Softeners
Clack water softeners from an authorized dealer, built for plumbers, well contractors and water treatment professionals: the WS1 for most residential installs, the WS 1.25 for larger homes and 1″ plumbing, twin-tank systems for 24/7 soft water, and WS 1.5 and WS2 commercial units, from $1,319 with a 5-year valve and 10-year tank warranty. Every system ships assembled with the valve programmed and resin loaded, nationwide. Dealer pricing, sizing and which model fits the job are below the products.
Clack water softener prices, models and sizing
Clack makes the control valve; we build the softener around it with a mineral tank, brine tank, resin and bypass, and program the valve to the site's hardness before it ships. What you're specifying is the valve size (which sets flow rate) and the grain capacity (which sets how much hardness it removes between regenerations). The models below cover a one-bathroom residence to a 300,000-grain commercial system. Trade pricing applies on volume and repeat orders; request a quote for multi-unit jobs.
| Model | Valve | Best for | Sizes | From |
|---|---|---|---|---|
| Clack WS1 Water Softener with EZsalt Sensor | WS1 EE, 1″, up to 27 GPM | Most homes, 1–8 bathrooms; the standard residential softener | 32K–120K grains (9×48 to 16×65 tanks) | $1,319 |
| Clack WS1 Softener + Carbon Filter | Two WS1 valves | Hardness plus chlorine, taste or odor on city water, in one matched pair | 32K–80K softener with matching carbon tank; 7 carbon media choices | $2,199 |
| Clack WS 1.25 EE Water Softener | WS 1.25, 1.25″, higher flow | Large homes, 1″+ plumbing, 4+ bathrooms, high-flow fixtures | 80K–210K grains | $1,999 |
| Clack Twin Tank Water Softener | WS1 twin-alternating | Soft water 24/7 with no regeneration downtime; wells with high hardness or iron | 24K–120K grains per tank | $2,109 |
| Clack WS 1.5 EE Commercial | WS 1.5, 1.5″ | Light commercial: restaurants, car washes, small multi-family | 120K–300K grains | $3,999 |
| Clack WS2 EE Commercial | WS2, 2″ | Commercial and industrial, high continuous flow | 120K–640K grains | $4,499 |
| Commercial Twin Tank | WS 1.5 / WS2 / WS3 twin | Continuous-duty commercial and process water | 300K–640K grains per tank | $18,389 |
List pricing shown; trade pricing on request. Every system includes the mineral tank, brine tank with safety float, resin loaded, bypass valve, and the valve pre-programmed to your hardness.
Which size Clack water softener do I need?
Grains per day = hardness in grains per gallon × people × about 75 gallons. Add 4–5 gpg for every 1 ppm of iron. Choose the capacity that lets the softener regenerate roughly once a week: that's the point where salt efficiency and resin life are both good. As a rule of thumb on 10–15 gpg city water:
| Household | Capacity | Tank |
|---|---|---|
| 1–2 people, 1 bath | 32,000 grains | 9″ × 48″ |
| 2–3 people, 1–2 baths | 40,000 grains | 10″ × 44″ |
| 3–4 people, 2–3 baths | 48,000 grains | 10″ × 54″ |
| 4–6 people, 3–4 baths | 64,000 grains | 12″ × 48″ |
| 6+ people, or hardness over 20 gpg | 80,000–120,000 grains | 13″ × 54″ to 16″ × 65″ |
Well water with iron over 3 ppm, manganese or a sulfur smell needs an iron filter ahead of the softener; see water softeners for well water. Send us the site's water test and pump specs and we'll size the train: request a quote or call 800-374-2143.
What the Clack WS1 valve does differently
- Metered, demand regeneration. Regenerates on gallons used, not a timer, so salt and water aren't wasted when you're away.
- EZsalt sensor (on the WS1 residential systems) sends a low-salt alert to your phone, the most common reason softeners stop working unnoticed.
- Simple programming. Four buttons, plain-English display; hardness, capacity and regeneration time set in a minute on site. Units ship pre-programmed to the spec you give us.
- Serviceability. Clack valves are built for field repair: pistons, seals and injectors change with basic tools and are stocked in our Clack parts collection.
- Flow. WS1 up to 27 GPM service flow; WS 1.25 and above for larger plumbing. Backwash flow is what your well pump must supply: 5 GPM for a 10″ tank, 7 GPM for 12″, 10 GPM for 13″.
Clack vs Fleck
Both are dealer-grade valves we sell and stand behind; Clack's edge is programming simplicity, the EZsalt option and flow at the same price point, Fleck's is a longer track record and slightly lower entry pricing. Read Clack vs Fleck for the full comparison, or see Fleck water softeners.
Frequently asked questions
How much does a Clack water softener cost? $1,319 to $2,199 list for the residential systems on this page depending on capacity and whether carbon filtration is paired; commercial WS 1.5 and WS2 systems from $3,999. Trade pricing is available on volume and repeat orders.
Where can I buy a Clack water softener? Clack sells only through authorized water treatment dealers. Aqua Home Supply is an authorized dealer supplying plumbers, well contractors, facilities teams and other water treatment professionals, with assembled systems shipped nationwide and genuine Clack parts in stock.
Is the Clack WS1 a good water softener? It's the most widely installed residential valve among independent dealers in the US, with a 5-year valve warranty and parts available everywhere. Read the WS1 reviews from our customers.
What's included? Valve, mineral tank loaded with resin, brine tank with safety float, bypass, drain fittings and the Clack WS1 manual. Connections to the main line and drain are made on site.
Salt-free option? If you want scale control without salt on city water, see salt-free systems; they don't remove hardness, so they're not a like-for-like swap.
All Clack products, including filters, tanks and parts: Clack Corporation. All brands: water softeners.
