How to choose.
Plain-language guides to selecting the right water treatment, carbon, gate, valve, chemical or filter, plus answers to common questions.
Which water treatment technology?
Match the technology to what you need to remove or achieve.
| If you need to | Consider | Notes |
|---|---|---|
| Remove salts, minerals and dissolved contaminants | Reverse osmosis (RO) | Ultra-clean output. RO membranes and FRP RO pressure vessels are available. |
| Improve clarity and remove fine particles | Ultrafiltration (UF) | A barrier technology; UF modules and systems are available. |
| Disinfect water | UV systems or ozone | Low and medium pressure UV, UV LED purifiers and ozone generators. |
| Remove chlorine, odours, organics and VOCs | Activated carbon filters | See the carbon grade guide below. |
| Soften or deionise water | Ion exchange resins | Resins for softening and deionisation. |
| Remove PFAS | PFAS cartridges, resins or PF grade carbon | Tell us your water source and target; we will recommend the best route. |
| Protect equipment from solids | Filter bags and cartridges | Melt-blown, string-wound, pleated and high-flow cartridges, and bags in PP, PE, nylon, PTFE and stainless steel. |
What to send usSource water and its quality, the flow or capacity you need, the quality you must achieve, and the site type. We will recommend a system.
Water treatmentWhich carbon grade?
Typical use for each Gaia Carbon grade. Specifications are on the carbon page and in the brochure.
| Application | Grade | Why |
|---|---|---|
| Soft drink bottling, breweries, process water, power plants, ion exchange resin protection | Pureo C | Medium to high activity coconut shell carbon |
| Home drinking water, beverage, breweries, RO membrane protection | PureoPlus-C | Acid washed coconut shell: low ash (1% max), neutral pH 6 to 8 |
| Odour and taste removal in general water treatment, process water, food and beverage | Pureo-HK | High activity bituminous coal carbon |
| Low and high organic loads in water and wastewater | Pureo-K | Cost-effective, multipurpose bituminous coal carbon |
| Gold recovery (CIL, CIP and CIC circuits) | GaiaGold (A280, A320) | High loading, low platelet, hard coconut shell carbon |
| PFAS removal from ground and surface water | PF grade | Engineered pore structure; 8×30, 10×40 and 12×40 sizes |
SupplyGranular through to powdered sizes, in 25 kg PE bags or 500 kg bulk bags. Every lot comes with a certificate of analysis. Other sizes are available on request.
View gradesWhich gate, valve or screen?
Jash Engineering equipment, by the job it does. Select a product name to see its specifications.
| If you need to | Consider | Notes |
|---|---|---|
| Isolate or control flow in a channel, tank or pipe outlet | Slide gates | Cast iron for heavy duty, stainless steel for corrosive and high-head duty, aluminium for low head, FRP and composite for corrosive and seawater service. |
| Isolate a channel for inspection or maintenance | Stoplogs or bulkhead gates | Stoplogs are stacked panels; bulkhead gates are a cost-effective way of dewatering channels. |
| Stop back flow at a free discharge outlet | Flap gates | Metal, HDPE and composite, for round and rectangular openings. |
| Control large openings, high heads or frequent operation | Roller gates | Stainless steel wheels run on side rails to reduce operating loads. |
| Achieve bubble-tight shut-off in treatment plants | Butterfly gates | Resilient sealing, three-side or four-side options. |
| Control level on weirs and dams, or open wide spans | Crest gates, radial gates or bonneted gates | Crest gates for flow and level; radial (Tainter) gates for wide unobstructed openings; bonneted gates for dam outlet works. |
| Shut off a water or wastewater pipe | MONO knife gate valves | MONO-A (ductile iron, PN 10 and PN 16), MONO-C (cast iron, up to 5 bar), MONO-T (cast stainless, corrosive and TAPPI duty). |
| Shut off a pipe carrying slurries or bulk solids | ZFI knife gate valves | Bonnetless design, DN 50 to DN 4000. |
| Remove debris at an intake or pumping station | Trash racks or bar screens | Trash racks for coarse screening (20 mm and above); multirake bar screens from 6 mm, or from 2 mm for deep channels. |
| Screen finely at a treatment plant or ahead of MBR | Step, band, drum or static screens | Fine screening from 0.5 mm; the Per-scalator band screen is suited to protecting MBR plants. |
| Move and dispose of screenings | Conveyors and washer compactors | Washer compactors reduce disposal volume by up to 50% DR. |
Custom designsJash offers custom designs for heads and sizes beyond those listed. Compare products side by side on the gates and valves page.
Browse the rangeWhich chemical family?
Kimberlite product families, by the problem you want to solve.
| Problem | Family | Notes |
|---|---|---|
| Scale in boilers, cooling towers or RO systems | Scale inhibitors; water treatment chemicals | Formulations for boilers, cooling towers, effluent treatment plants and RO. |
| Corrosion of equipment and pipework | Corrosion inhibitors | Protect equipment and pipework from scale and corrosion. |
| Microbial growth in water systems | Biocides | Biocide formulations, including quaternary ammonium compounds. |
| Solids settling or fouling surfaces | Acrylic dispersants | Homopolymer, copolymer, terpolymer, PMA and HPMA. |
| Cloudy water or wastewater | Organic coagulants | For clarification of water and wastewater. |
| Foam in water or process streams | Defoamers | Silicone and non-silicone. |
| Protecting paints and coatings | Paint additives | Biocides and dispersants. |
| Sugar mills and refineries | Sugar process chemicals | Biocide, evaporator antiscalant, viscosity reducer, defoamer, colour precipitant. |
| Pulp and paper, oilfield, mining and resins | Industry ranges | Pulp and paper, oilfield, mining chemicals, and resins and surfactants. |
Matching a productTell us your application, water source or process, dosing volume and pack size, and we will recommend a product and confirm availability.
View the rangeWhich Exposome filter media?
Regenerable molecular filters, by target gas or pollutant. Media are customised to your gas stream or effluent.
Air: PurSafe media
| Target | PurSafe media |
|---|---|
| SOx, NOx, H2S (also ethylene and aldehydes) | PurSafe 1001 |
| Hydrogen sulphide, SOx and chlorine (high capacity) | PurSafe 1002 |
| Nitrogen oxide, ozone, formaldehyde and VOCs | PurSafe 4001 |
| Acidic gases containing chlorine | PurSafe 2001 |
| Ammonia | PurSafe 3001 |
| H2S, CS2, acidic gases and VOCs | PurSafe 1031 |
Water: PureWWT media
| Target | PureWWT product |
|---|---|
| COD, TOC and colour | PureCODe |
| Ammoniacal nitrogen | PureAmon |
| Hardness | PureSoft |
| Heavy metals (Zn, Cr, Fe, Cd, Cu, Pb) | PureMet |
| Oil and grease | AquaOilyG |
| Cyanide, silica and suspended solids | Pure Cyanide, Pure Sil and glass bead media |
Full tablesThe PurSafe brochure lists the complete media code table, including media for ozone, hydrogen fluoride, carbon monoxide, and bacteria and viruses.
Air & waterFrequently asked questions.
Short answers to the questions we hear most. Ask us if yours is not here.
Where do you supply?
AirAqua supplies Australia and New Zealand and is based in Sydney.
Which brands and manufacturers do you represent?
AirAqua represents Jash Engineering (gates, valves and screens), Kimberlite Chemicals (specialty chemicals), Gaia Carbon (activated carbon) and Exposome (molecular air and water filtration) in Australia and New Zealand. AirAqua also supplies water treatment components and systems.
How do I get a quote?
Use the quote form on any product page, or call +61 434 397 890. Tell us your application, the size or flow involved and any product you use now, so we can recommend the right product and respond with a quote.
What should I include in an enquiry?
The more we know, the faster we can help. It is useful to include your application or industry, the capacity, flow or size you need, the water or process conditions, the quantity, and your location.
Can I download brochures?
Yes. All brochures are on the Brochures page and on each product page. You can download them without registering.
Do you provide drawings and technical support?
Yes. For Jash products, contact AirAqua for quotes, drawings and technical support.
Can gates and valves be made to custom sizes?
Jash offers custom designs for heads and sizes beyond those listed in the range. Tell us your requirement and we will confirm what is possible.
What certifications do your suppliers hold?
Kimberlite is ISO 9001:2015, NSF 60, Halal, Kosher and FDA certified. Gaia Carbon holds NSF, Halal and Kosher certification and meets EN 12915. Jash manufactures under ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018, and its products carry CE, NSF and CRN certificates. Contact us for details. AirAqua confirms current specifications and certifications at quotation.
What pack sizes does activated carbon come in?
Gaia Carbon grades are supplied in 25 kg PE bags or 500 kg bulk bags, in sizes from granular to powdered. Other sizes are available on request.
Do you supply a certificate of analysis?
Yes. Every lot of Gaia Carbon is supplied with a certificate of analysis against specification.
Can Exposome filter media be reused?
Yes. The media regenerates on site with simple, non-toxic reagents, for up to 200 cycles between replacements.
Do you supply small or domestic water treatment systems?
Yes. UF and RO systems range from domestic to light industrial and institutional, and industrial and municipal scale. See the water treatment page.
What is PFAS and how do you remove it?
PFAS are perfluorinated compounds. They are persistent and a growing concern for water quality. AirAqua offers PF grade activated carbon engineered for PFAS removal, as well as PFAS removal cartridges and resins. Tell us about your water and we will recommend the best option. See the PFAS reduction page.
How long does delivery take?
Lead times depend on the product and quantity. AirAqua confirms current specifications and lead times when we quote.
Still unsure?Call +61 434 397 890 or send an enquiry and our team will help you choose.
Speak to our teamNeed help choosing?
Tell us about your application and our team will recommend the right product and respond with a quote.