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What is Gaffey Technology?
Gaffey Technology is a British manufacturer and global engineer of on-site, or “in-situ,” water disinfection systems. Rather than selling packaged chemicals, it builds equipment that generates disinfectants at the point of use from simpler feedstocks—an approach aimed at improving safety, reducing chemical transport and storage, and giving operators closer control over dosing. The company describes its systems as serving commercial, industrial and domestic sectors.
What Gaffey makes
Gaffey’s product lines centre on three disinfection chemistries:
- Hyprolyser® electrochlorination systems generate sodium hypochlorite on site by electrolysing salt, producing a chlorine-based disinfectant without transporting bulk hypochlorite.
- chloriDOS® iOX® chlorine dioxide systems produce chlorine dioxide on site, which the company presents as a way to reduce chemical-handling requirements and the environmental impact of transporting and storing precursor chemicals.
- chloriDOS® MCA monochloramine systems generate monochloramine on site, with a fail-safe batch generator and precision blending emphasised in the product description.
Gaffey also highlights two cross-cutting technologies: patented chloriDOS® in-situ chemical blending, and “Adaptive Response Technology” (ART), a control layer built into its electrochlorination and chlorine dioxide generation systems.
Who it is for
The intended users are organisations that need reliable, continuous disinfection of water at their own site—for example industrial processes, commercial buildings, or facilities where storing and handling bulk disinfectant chemicals is a safety or logistics burden. On-site generation tends to appeal where chlorine demand is steady and where avoiding delivered chemical stocks simplifies compliance and risk management.
Practical trade-offs
On-site generation is not automatically the right answer for every site. It usually means accepting more equipment, maintenance and operator training in exchange for lower chemical storage and transport risk. Electrochlorination depends on a consistent salt supply and power; chlorine dioxide and monochloramine systems involve precursor chemicals and require careful control to avoid unwanted by-products. The choice between the three chemistries should follow the water chemistry, required residual, contact time and regulatory limits—not the equipment alone.
Next step
If you are evaluating Gaffey, start by defining your disinfection goal: required residual, flow rate, water quality and any by-product limits. Then ask which chemistry fits, and request performance and operating data for that specific system. You can review the company’s range and contact details at Gaffey. For independent context on disinfection options, the US EPA and the World Health Organization publish guidance on drinking-water treatment and disinfection by-products.
Which Gaffey system is best for my water disinfection application?
The right Gaffey system depends less on the industry you work in and more on the chemistry you need, the risks you want to reduce, and how much space and maintenance attention you can give the equipment. Gaffey builds three main families, each generating a different disinfectant on site rather than delivering it as a ready-made chemical.
The three system families
| System | What it generates | Typical role | Main trade-off |
|---|---|---|---|
| Hyprolyser® | Sodium hypochlorite (NaClO) via electrochlorination from salt | General disinfection for commercial, industrial and domestic water | Needs a salt supply and electrolytic operation, but avoids bulk hypochlorite deliveries |
| chloriDOS® iOX® | Chlorine dioxide (ClO₂) | Applications needing a stronger, more persistent disinfectant, including challenging water quality | More complex chemistry than hypochlorite, but removes transport and storage of chlorine dioxide |
| chloriDOS® MCA | Monochloramine (NH₂Cl) | Long-lasting residual disinfection where a milder, more stable residual is preferred | Narrower set of suitable applications; batch generation must be managed correctly |
How to choose
Work through these questions in order:
- What residual do you need? If a straightforward chlorine residual is acceptable, Hyprolyser® is usually the simplest fit. If you need the persistence and biofilm performance of chlorine dioxide, look at the iOX®. If you need a stable residual that lasts through long distribution runs, monochloramine may suit.
- What can you store and handle on site? All three generate disinfectant in situ, which reduces or eliminates the need to store and transport hazardous chemicals. That matters most where space is tight or chemical deliveries are difficult.
- How much control do you want? Gaffey's Adaptive Response Technology (ART) is built into the Hyprolyser® iSEC® and chloriDOS® iOX® systems, and the MCA includes a fail-safe batch generator. If unattended or lightly supervised operation is important, prioritise these control features.
- What scale and location? Gaffey states its systems are British-built and distributed worldwide, serving commercial, industrial and domestic sectors.
A concrete example
A food and beverage plant with variable raw-water quality might find hypochlorite alone struggles with taste, odour or biofilm issues, and could reasonably evaluate the chloriDOS® iOX® instead. A hotel or small municipal supply with a long distribution network might care more about residual longevity and look at the MCA. A facility that simply wants to stop handling bulk hypochlorite deliveries may find Hyprolyser® the most direct route.
Next step
Gaffey's own site suggests contacting its team to establish which system suits your application, and it publishes news updates you can subscribe to. Because the correct choice depends on your water chemistry, flow rate and regulatory limits, treat the table above as a shortlist rather than a decision, and confirm the final selection with Gaffey or a water treatment specialist. You can start at Gaffey.
How does in-situ chlorine dioxide generation compare to electrochlorination for commercial water treatment?
In-situ chlorine dioxide generation and electrochlorination both make disinfectant at the point of use, but they differ in chemistry, safety profile and where they fit best. On Gaffey's site, these are two distinct product families: chloriDOS® iOX® for chlorine dioxide (ClO2) and Hyprolyser® for electrochlorination, which generates sodium hypochlorite (NaClO) from salt.
The core difference
| Aspect | In-situ chlorine dioxide (ClO2) | Electrochlorination (NaClO) |
|---|---|---|
| Raw material | Precursor chemicals blended on-site | Salt (plus electricity) |
| Disinfectant produced | Chlorine dioxide | Sodium hypochlorite |
| Chemical handling | Precursor chemicals still delivered and stored | Avoids bulk hypochlorite delivery and storage |
| Typical strength | Strong oxidiser effective at low doses | Moderate oxidiser, dosed higher |
| By-products | Chlorite/chlorate formation is the main concern | Trihalomethanes and other chlorinated by-products |
| Biofilm and taste/odour | Often chosen where biofilm, taste or odour matter | Common baseline disinfection |
The practical trade-off is this: electrochlorination removes the need to transport and store bulk hypochlorite, which is a genuine handling and safety gain. Chlorine dioxide keeps precursor chemicals in the supply chain but gives a more powerful oxidiser that is often preferred against biofilm and stubborn taste-and-odour problems.
Where each tends to fit
Choose electrochlorination when you want simple, continuous disinfection, have a reliable salt and power supply, and your main goal is keeping a residual through a distribution network. It suits sites that already think in terms of chlorination and want to stop buying and storing liquid hypochlorite.
Choose in-situ chlorine dioxide when disinfection is harder — where biofilm, manganese, taste and odour, or specific industrial process water are the real problems. It is also worth considering where precursor handling can be managed safely, because that handling is the main operational burden.
A concrete scenario
A food and beverage plant with warm process water and biofilm in pipework often finds hypochlorite struggles at acceptable doses. A ClO2 system can be more effective at lower concentrations, but the site must train staff on precursor chemicals and monitor chlorite. A hotel or small municipal network with stable, clean source water may find electrochlorination simpler to run and easier to justify.
Decision criteria
- Water quality problem: biofilm, taste, odour or manganese point toward ClO2; routine residual disinfection points toward electrochlorination.
- Chemical handling capacity: electrochlorination avoids bulk hypochlorite; ClO2 still requires precursors.
- By-product limits: check local rules for chlorite and chlorate versus trihalomethanes.
- Operating simplicity: electrochlorination is generally the easier system to run day to day.
A useful next step is to request the site-specific comparison from Gaffey's team via Gaffey, since the right choice depends on your water analysis, flow rate and discharge limits rather than on the technology alone.
What maintenance and safety requirements are involved in operating Gaffey's on-site chemical generation systems?
Gaffey's on-site generation systems are designed to reduce the hazards of handling bulk treatment chemicals, but they still require a structured maintenance and safety routine. The company's three main product families—Hyprolyser® electrochlorination, chloriDOS® iOX® chlorine dioxide and chloriDOS® MCA monochloramine—all generate disinfectant at the point of use, and the page describes built-in smart technology ("Adaptive Response Technology") across the electrochlorination and chlorine dioxide units. That kind of monitoring typically shifts day-to-day attention from manual chemical dosing to instrument checks, consumable replacement and periodic verification of output.
Safety requirements
- Chemical handling is reduced, not eliminated. On-site generation avoids transporting and storing bulk hypochlorite or chlorine dioxide precursors, which the page cites as an environmental and handling benefit. Operators still need to manage precursor chemicals—salt for electrochlorination, and the feed chemicals for chlorine dioxide and monochloramine—with appropriate PPE, ventilation and spill provision.
- Gas and leak detection. Chlorine dioxide and monochloramine generation carry a risk of release if dosing or blending fails. Gaffey highlights a "fail-safe batch generator" on the MCA monochloramine system, which is a safety-oriented design feature; sites should still pair generation equipment with gas detection and emergency shutdown where local rules require it.
- Electrical and hydrogen safety. Electrochlorination produces hydrogen as a by-product, so ventilation and gas management around the electrolyser are standard considerations, along with the usual electrical safety regime for wet plant rooms.
- Training and documentation. Staff operating generation plant need training on precursor handling, emergency procedures and the specific control system. Because these are British-built systems distributed worldwide, local drinking-water or workplace regulations will set the binding requirements.
Maintenance requirements
- Routine inspection and calibration. Sensors, dosing pumps and blending components need scheduled checks so that generated concentration stays within target. Adaptive Response Technology is described as embedded in the Hyprolyser® and iOX® systems, which suggests condition monitoring and automated adjustment—useful, but not a substitute for calibration.
- Consumables and wear parts. Electrochlorination cells, pump seals, tubing and filters degrade over time and need planned replacement. Salt quality matters for Hyprolyser® performance and cell life.
- Cleaning and descaling. Electrochlorination and chemical blending equipment is prone to scaling and fouling, particularly with hard water, so a cleaning schedule is part of normal operation.
- Verification testing. Confirm actual disinfectant residual and by-product levels periodically, since generation efficiency drifts with water quality, temperature and run hours.
Choosing between the systems
| System | Disinfectant | Typical maintenance emphasis | Typical safety emphasis |
|---|---|---|---|
| Hyprolyser® | Sodium hypochlorite from salt | Electrolyser cells, salt supply, hydrogen ventilation | Hydrogen and electrical safety, salt handling |
| chloriDOS® iOX® | Chlorine dioxide | Precursor dosing accuracy, blending components | Precursor reactivity, gas detection |
| chloriDOS® MCA | Monochloramine | Batch generator and dosing precision | Fail-safe batch operation, precursor handling |
A practical next step is to ask Gaffey for the operation and maintenance schedule and safety data for the specific model you are considering, then map it against your site's water quality, available operator time and local regulatory obligations. For context on sector expectations, see DVGW for German technical standards or US EPA for drinking-water and disinfection guidance. If you are comparing on-site generation with delivered chemicals, weigh the reduced transport and storage risk against the added instrument maintenance and operator training that generation plant demands.
Can Gaffey systems be integrated into existing industrial water treatment infrastructure?
Yes. Gaffey designs its systems as in-situ generation and dosing equipment, so the intended role is to add disinfection at the point of use inside an existing water treatment train rather than replace the whole plant. The page describes three families — Hyprolyser® electrochlorination, chloriDOS® iOX® chlorine dioxide and chloriDOS® MCA monochloramine — all built around on-site chemical generation and precision blending, with Adaptive Response Technology (ART) included across the Hyprolyser® iSEC® and chloriDOS® iOX® lines.
Where integration usually happens
- After primary treatment, before storage or distribution. Disinfection is typically the final barrier, so a generator and dosing skid is inserted downstream of filtration, softening or reverse osmosis and ahead of tanks and pipework.
- As a replacement for delivered chemicals. On-site generation removes the need to transport and store bulk hypochlorite or chlorine dioxide precursors, which is the main infrastructure change: you swap a chemical store and dosing rig for a generator, salt or precursor supply, and a control interface.
- Alongside existing pumps, tanks and pipework. The systems are described as generating and dosing into a water stream, so they work with the distribution assets already in place.
What to check before assuming a fit
| Factor | Why it matters |
|---|---|
| Available utilities | Electrochlorination needs salt, water and power; chlorine dioxide and monochloramine systems need precursor chemicals and accurate blending |
| Control interface | ART is the smart control layer — confirm how it talks to your existing SCADA or BMS |
| Dosing point and water chemistry | pH, temperature, demand and contact time determine which chemistry suits your stream |
| Footprint and safety | Precursor storage, ventilation and bunding requirements differ by system |
| Throughput | Match generator capacity to peak and average flow, not just daily volume |
Practical next step
Ask Gaffey which system suits your application and request the utility, footprint and interface requirements for that unit, then compare them against your plant's available power, water, chemical storage and control system. A useful decision rule: if you want to stop handling bulk hypochlorite, electrochlorination is the natural starting point; if you need a more persistent residual or control of specific disinfection by-products, chlorine dioxide or monochloramine generation is worth evaluating instead. For context on how on-site generation fits wider treatment practice, the US EPA publishes guidance on drinking water disinfection, and WHO covers water safety planning.
What sectors and applications rely on Gaffey's water disinfection solutions?
Gaffey serves commercial, industrial and domestic sectors with on-site water disinfection systems, and the page names the sectors it targets broadly rather than listing every application. The clearest way to read its fit is by the three generation technologies, because each suits different water conditions and operational priorities.
The three systems and where they tend to fit
- Hyprolyser® electrochlorination generates sodium hypochlorite on site from salt. This suits sites that want to avoid delivered bulk hypochlorite and its storage and handling demands, such as larger buildings, leisure and pool facilities, food and beverage operations, and industrial cooling or process water where a steady chlorine residual is needed.
- chloriDOS® iOX® chlorine dioxide produces ClO2 on site. Chlorine dioxide is typically chosen where biofilms, taste and odour compounds, or broader pH tolerance matter, which points to potable water suppliers, food and drink production, hospitals and care settings, and industrial water circuits.
- chloriDOS® MCA monochloramine generates monochloramine on site for situations needing a more stable residual, often in long distribution networks or premises where chlorinous taste is a concern.
Who this is for
The audience is primarily facilities, operations and water engineers responsible for continuous, safe water quality — not households buying a single appliance. Buyers at that level usually weigh chemical transport and storage risk, dosing accuracy, monitoring and remote visibility, and service support. Gaffey emphasises British manufacturing, worldwide distribution, and its Adaptive Response Technology (ART) built into the Hyprolyser® iSEC® and chloriDOS® iOX® systems.
How to decide
Start from your water chemistry and disinfection goal, not the equipment list. If you need a simple, low-hazard chlorine residual and have salt available, electrochlorination is the natural starting point. If biofilm, taste or pH variability is the problem, chlorine dioxide is worth examining. If residual persistence across a long network is the priority, monochloramine may fit better.
A practical next step is to note your source water, target residual, daily demand and site constraints, then compare those against the three systems before contacting the team. For background on disinfection approaches, the CDC and US EPA publish useful guidance on drinking water treatment and disinfectants.
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