Flairform - Professional pH Down Liquid (250mL & 1L Bottles) – Super-Concentrated Organic Citric Acid Fluid Modifier (500g/L C₆H₈O₇)
Please note the above shipping is an estimation only. Actual shipping cost can be calculated on the checkout page.
Important shipping notice: This product is not stocked at our Thomastown, VIC warehouse and is dispatched from another local warehouse. Please allow approximately 1-2 weeks for it to reach us before it is ready for pickup or dispatch.
Flairform - Professional pH Down Liquid (250mL & 1L Bottles) – Super-Concentrated Organic Citric Acid Fluid Modifier (500g/L C₆H₈O₇)
Take absolute control over your reservoir chemistry, stop high-pH drift, and maintain a highly bio-available nutrient environment with Flairform Professional pH Down Fluid Modifier. Explicitly formulated to satisfy the tight tolerances of commercial greenhouse setups, vertical indoor farms, and advanced hydroponic systems, this premium-tier organic acidifier is the definitive choice for reducing reservoir pH safely. In active, fast-growing crop cycles, water holdings and fertigation tanks often trend upward in pH due to aggressive anion absorption, hard source water, and alkaline additives. When water chemistry climbs past the optimal 5.5 to 6.5 threshold, vital trace minerals like iron, manganese, and zinc precipitate out of solution, leading to severe nutritional lockouts and stunted canopy growth. The Flairform solution corrects this issue with expert precision. Engineered at a super-concentrated density of 500g/L of high-purity Citric Acid (C₆H₈O₇), this heavy-duty organic modifier neutralises excess alkalinity instantly upon contact. Unlike harsh phosphoric or nitric acid adjusters that can easily over-correct and shock micro-biological root populations, Flairform’s citric acid base acts as a gentle, highly stable buffering agent that breaks down cleanly without leaving chemical residues. Available in compact **250mL maintenance bottles** or high-volume **1-litre commercial jugs**, this super-concentrated fluid ensures your liquid environments remain perfectly balanced through long crop schedules.
Best For: Safely bringing down pH levels in organic or hybrid reservoirs, correcting hard water alkalinity, running precision adjustments on automated mixing lines, and maintaining a healthy environment for root-zone biology.
Key Features & Technical Advancements
- Super-Concentrated 500g/L Active Formula: Packed with a high-density citric acid concentration, meaning tiny doses alter large volumes of water, keeping your facility’s operating costs low.
- Gentle, Safe Organic Acidification: Lowers reservoir pH smoothly without causing the sudden chemical spikes often seen with industrial-tier mineral acids, protecting delicate root networks from chemical shock.
- Feeds Beneficial Root-Zone Biology: The natural carbon structure of citric acid serves as an organic food source for beneficial soil microbes and mycorrhizae, boosting root-zone vitality.
- Instant Fluid Soluble Dispersion: The premium liquid formula mixes instantly throughout your water storage tanks, avoiding concentrated chemical hot-spots that can damage plant tissue.
- Highly Visible Material Safety Data Sheet (MSDS) Compliance: Backed by transparent chemical documentation, making it an excellent, reliable addition to strict commercial cultivation SOPs and industrial safety checks.
- Dual-Volume Commercial Packaging Options: Available in handy 250mL bottles for quick, on-the-floor dosing, or high-capacity 1-litre jugs to keep automated dosing pumps well-stocked over long crop cycles.
Product Technical Specifications Matrix
| Chemical, Concentration, & Handling Parameters | Engineering Metric / Design Detail Options |
|---|---|
| Brand & Manufacturing Partner | Flairform Australia / Commercial Agricultural Chemistry Division |
| Primary Chemical Purpose | Liquid Reservoir pH Reduction & Organic Buffering Range Management |
| Component Volume Options | 250mL Precision Dispensing Bottle | 1-Litre Bulk Commercial Jug |
| Active Chemical Ingredient | High-Purity Organic Citric Acid (C₆H₈O₇ Technical Standard) |
| Chemical Concentration Density | 500 grams per Litre (500g/L Super-Concentrate Standard) |
| Residue & Cleanliness Profile | Breaks Down Cleanly / 100% Free of Harsh Heavy-Mineral Fillers |
| Fluid Mixing Characteristics | 100% Immediate Soluble Dispersion (Leaves Zero Undissolved Solids) |
| Safety Documentation Compliance | Fully Registered Material Safety Data Sheet (MSDS / SDS) Available |
| Primary Operational Benefit | Prevents Alkaline-Induced Nutrient Lockout and Safeguards Root Biology |
Advanced Reservoir Modification & Substrate Control Tips
- Executing a Professional Reservoir pH Reduction Routine: Because this professional fluid is highly concentrated, you must follow a strict, careful dosing protocol to prevent over-adjusting your water tanks. Always mix your base nutrients, biostimulants, and additives thoroughly into your water reservoir *before* testing or adjusting your pH, as many fertilizers are naturally acidic and will pull your numbers down on their own. Once your nutrient mix is fully dissolved, take an accurate reading with a freshly calibrated pH pen. If the number falls above your target range, dilute a small amount of Flairform pH Down into a cup of fresh water first, then pour the diluted mixture slowly into your reservoir near an active mixing pump. Let the tank stir completely for 5 to 10 minutes before taking another reading, adjusting in small increments to reach a perfect balance.
- Root-Zone Hydration and Substrate Coordination: Keeping your irrigation tanks perfectly balanced within an optimal pH range ensures your automated systems deliver stable nutritional profiles, protecting your root zones from severe chemical shock. For optimal root health, accelerated nutrient absorption, and uncompromised drainage, route your perfectly verified fertiliser recipes into a high-porosity 70/30 blend of Coco Coir and Horticultural Perlite. To ensure completely uniform irrigation delivery across your entire layout, pressurize your feed lines using a heavy-duty Plont PPH Submersible Pump managed by an automated digital shot-timer.
- The Buffer Equation: Why High-Concentration Adjusters Outperform Cheap Alternatives: Cheap, watered-down pH adjusters force greenhouse technicians to use large amounts of fluid just to move a reservoir a few points. This constant pouring introduces un-buffered chemical swings and fills your reservoir with unnecessary water volume, which causes the water chemistry to slide back up hours later. Flairform’s 500g/L concentration offers massive chemical leverage, altering water parameters with tiny doses. This creates a highly stable, long-lasting chemical balance that keeps your water rock-solid over multi-day feeding schedules.
- Industrial Handling Safety and Storage Best Practices: Due to its high-density 500g/L Citric Acid composition, Flairform pH Down is a professional concentrate that must be handled with appropriate care. Technicians should always wear chemical-resistant gloves and protective eyewear when measuring or pouring this modifier. Never store this fluid in direct sunlight or un-insulated rooms; keep the bottle upright in a cool, dry chemical cabinet locked between 15°C and 25°C. Always secure the cap tightly immediately after use to prevent the solution from drawing moisture out of the air, which can slowly lower its chemical strength over time.
Ideal For (Uses)
- Organic and Hybrid Hydroponic Reservoirs: The definitive acidic modifier choice for large-scale agricultural facilities looking to safely lower the pH of active water holdings without using harsh mineral chemicals.
- Automated Dosing System Integration: Ideal for technical cultivation teams who need a premium, residue-free liquid concentrate to fill the acid tanks of automated inline dosing equipment.
- Biological Cultivation Programs: An exceptional component selection for living soils, coco-coir systems, and crops requiring a gentle acid source that supports thriving microbe colonies.
| Size |
250ml, 1L |
|---|
Oversized Item Delivery Options
Since oversized items require special handling, we may need to provide a custom freight quote for your order and will contact you with an updated shipping rate.
Available options include:
✔ Delivery to your closest depot for pickup - default method
✔ Direct delivery - requires forklift on site
✔ Direct delivery with tailgate lift truck (extra fees apply)
✔ Forklift loading at our warehouse (no extra charge if you arrange your own freight)
✔ Direct truck delivery (available in Victoria)
Important Notes:
- Shipping costs vary by location and method
- Because of the forklift requirement, delivery to the nearest depot is the default option and will be the method used unless you contact us to request otherwise.
Business Delivery:
- Business delivery is available for commercial customers only
- If you select business delivery and your products are bulky, it is your responsibility to ensure you have appropriate equipment (including forklifts) to unload products from the delivery truck
- If you select business delivery and you are not a business, you risk your product not being delivered and may incur additional fees to retrieve your order
- Business delivery customers must provide a valid business address and contact information
- Additional fees may apply for failed delivery attempts due to lack of appropriate unloading equipment
Let us know your preference, and we'll arrange the best solution for you!
Important Note on Availability & Shipping
Our warehouse serves as our office and logistics centre rather than a retail showroom. Because we ship from multiple locations and manage high-turnover stock, not all items are available for immediate pickup.
Lead Times:
- In-Stock Items: Usually ready for dispatch the same day.
- Supplier-Dependent Items: Usually take 2–8 weeks to arrive, depending on supplier availability. Products from Adloheat may take 8–12 weeks to manufacture—they are made to order in Australia by a small business, and longer lead times reflect the care put into quality.
While we strive for fast delivery, some timelines are subject to supplier availability and are beyond our control. We appreciate your patience as we source the best quality gear for your project.
Biosecurity & Interstate Shipping Restrictions
Due to strict state biosecurity regulations, we are unable to ship some products to certain states and territories:
- Potting Mixes cannot be shipped to Western Australia (WA), the Northern Territory (NT), or Tasmania (TAS).
- Seeds cannot be shipped to Western Australia (WA).
Orders placed for these items to restricted states will be cancelled and refunded. It is the customer's responsibility to ensure that the items being ordered can lawfully be delivered to their state or territory.
We Offer the Best Prices
We are committed to offering our customers the best prices possible. If you find the exact same product advertised at a lower price elsewhere, we invite you to contact us and we will review your price match request.
Price Match Conditions:
- The competitor must be an Australian-based seller with a physical presence in Australia
- The product must be the exact same item with a matching SKU or model number
- The product must be in stock and available for purchase at the competitor
- The lower price must be publicly advertised and currently available (not a clearance, closeout, or discontinued item)
- Price matching excludes marketplace platforms including but not limited to Temu and Aliexpress
- Price matching requests must be made before purchase
How to Request a Price Match:
To request a price match, please contact us at sales@greenhousepolytunnels.com.au with a link to the competitor's product listing, or call us on 0418 438 774. Please include the product details and the advertised lower price. We will review your request and respond within 2 business days.
Shop
- Choosing a selection results in a full page refresh.


