20% Phosphoric Acid pH Adjuster for Commercial Reservoirs
Built around 20% food-grade phosphoric acid and matched to HGV Nutrients chemistry, this pH down lowers reservoir pH on small dose volumes. The acid contributes a known phosphorus load to the program. The 20% concentration sits below industrial 75–85% acid strengths, giving operators a more forgiving handle on dosing without giving up commercial throughput. The 55-gallon drum sizes it for fertigation skids, central dosing tanks, and recirculating reservoirs where 1-gallon jugs disappear inside a feed cycle. Direct use without further dilution. Add it to the working tank after all nutrients are fully mixed and homogenized.
Mixing Order and P Contribution for HGV Condition pH Down
Add the acid last, after silica, base nutrients, cal-mag, and any supplements have circulated and homogenized in the reservoir. At 20% strength, dose volumes stay small — start with 1 mL per gallon, wait 15–30 minutes, and re-measure before adjusting again. Track the cumulative phosphorus contribution across the bloom run. Reservoir P from acid stacking on top of bloom-formula P can push the line beyond intended targets, especially in hard-water rooms. Keep the working drum on a vented stand and use a hand pump rated for food-grade acid handling.
Key Features
- 20% Food-Grade Phosphoric Acid: Acidifier strong enough to shift reservoir pH on 1–2 mL per gallon while staying below industrial-strength handling concerns.
- HGV Nutrient Compatibility: Formulated against the HGV Condition, Grow, and Flower lines so the P addition is anticipated by the program.
- 55-Gallon Drum Format: Sized for central dosing systems, multi-room fertigation, and large recirculating reservoirs where hobby pints don't last a feed cycle.
- Direct-Use Formulation: Built for direct addition without pre-dilution, removing a step from the daily reservoir workflow.
- Single-Active Formula: Phosphoric acid is the only active — no sulfate or nitrate carryover that would drift other line targets.
Technical Specifications
| Specification | Value |
|---|---|
| Active Ingredient | Phosphoric Acid (Food-Grade) |
| Concentration | 20% Phosphoric Acid |
| NPK | 0 - 20 - 0 |
| Container Size | 55 Gallon Drum |
| Function | pH Adjuster (Lower pH) |
| Compatible Line | HGV Nutrients (Condition / Grow / Flower) |
| Application | Hydroponic, Coco, Soilless |
| Dilution | Direct Use, No Pre-Dilution Required |
| Mixing Order | Add Last, After Nutrients Are Mixed |
