

HGV Condition pH Down Built for Nutrient-Mixed Reservoirs
This 5-gallon jug carries a stable, food-grade 20% phosphoric acid solution (NPK 0-20-0) that pulls reservoir pH down with small drop-wise additions. Unlike concentrated KOH pH Up, the formulation runs neat — no upfront dilution required at reservoir scale. Acidify last. Apply only after the full feed has mixed, since acidifying before the macros are dissolved invites localized pH swings around the dosing point.
20% Phosphoric Acid pH Down Concentration for Hydroponic Use
As a hydroponic pH adjuster built on phosphoric acid, every dose contributes phosphorus to the same range where crops are already feeding. Start with 1–2 mL per gallon, stir for 15–30 seconds, wait 5–10 minutes, and re-test before another correction. The 5-gallon format suits dosing reservoirs feeding multiple zones, fertigation injectors, and commercial rooms where smaller bottles cycle out fast.
Key Features
- 20% Phosphoric Acid: A food-grade acidifier that lowers reservoir pH with small drop-wise doses across most feed strengths.
- HGV Nutrient Compatibility: Formulated to pair cleanly with HGV Base, Growth, and Flowering without precipitating macros at the dosing point.
- NPK 0-20-0: Each pH correction adds available phosphate, the same range hydroponic crops already pull during transition and flowering.
- No-Dilution Use: Applied straight to the mixed reservoir at recommended dose rates without pre-dilution steps.
- 5-Gallon Bulk Format: Sized for dosing reservoirs, multi-zone fertigation lines, and commercial rooms where smaller bottles run out mid-cycle.
Technical Specifications
| Specification | Value |
|---|---|
| Active Ingredient | Phosphoric Acid (H₃PO₄) |
| Concentration | 20% |
| Grade | Food-Grade |
| NPK Equivalent | 0-20-0 |
| Function | pH Down (Lowers pH) |
| Size | 5 Gallon |
| Compatibility | HGV Nutrient System |
| Application Method | Direct (no dilution required) |
| Starting Dose Rate | 1–2 mL per gallon |
| Mix Order | After all nutrients fully dissolved |

