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Three bottles of Drip Hydro pH Down, two smaller and one larger, with pink accents on the labels and product name.
White jug of Drip Hydro pH Down plant nutrient, lowers pH.
Drip Hydro pH Down gallon jug with red splash and "ph down" text.
Drip Hydro pH Down 5-gallon jug with pink swirl graphic.
Three bottles of Drip Hydro pH Down, two smaller and one larger, with pink accents on the labels and product name.
White jug of Drip Hydro pH Down plant nutrient, lowers pH.
Drip Hydro pH Down gallon jug with red splash and
Drip Hydro pH Down 5-gallon jug with pink swirl graphic.
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Drip Hydro pH Down

Official Drip Hydro Dealer Model: 30923
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  • Concentrated formula requires only 0.25-1 mL per dose to adjust solution pH
  • Fully soluble phosphoric acid base compatible with all fertigation and reservoir systems
  • Works across all growth media including coco, soil, and hydroponic setups
  • View More Details

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THROUGH THE Cultivator's LENS Hands-On Evaluation

  • You are using a reservoir-based system because your current feed cycle drifts out of the optimal pH range daily.
  • You are switching to a concentrated buffer because you are tired of overshooting your target pH with imprecise bottles.

  • The phosphoric acid base is extremely stable, which means it will not drop back out of suspension in your tank.
  • We suggest using a syringe for dosing because the concentration is high enough that a single drop goes a long way.

  • Users report that they stopped seeing nutrient lockout signs in their plants after switching to this buffer.
  • Growers say they spend less time troubleshooting their reservoirs because this product holds the pH steady.

Drip Hydro pH Down

A nutrient solution that drifts too alkaline can lock out key elements just as easily as one that's too acidic, and imprecise adjusters make it hard to dial in without overcorrecting. Drip Hydro pH Down is a highly-concentrated pH buffer formulated with phosphoric acid, used to lower the pH of irrigation water or a mixed-nutrient solution for optimal nutrient absorption, available in Quart, 1 Gallon, and 55 Gallon sizes.

Maintaining the correct pH level is essential for healthy plant growth and nutrient uptake, and pH Down's concentrated formula allows for quick, accurate dosing — dilute just 0.25-1 mL at a time to lower pH to the desired level. It's fully soluble and system-safe for reliable fertigation use, working alongside core nutrients like Drip Hydro Base A, Base B, and Flex PK Booster.

By correcting high pH and stabilizing nutrient solutions, especially when used in tandem with Drip Hydro pH Up for precise balancing, pH Down helps maintain the ideal pH range for maximum nutrient availability, preventing high-pH lockouts that can slow growth and reduce plant performance throughout all stages of growth.

Features

⬇️
Fast, Accurate pH Correction

Lowers nutrient solution pH quickly and accurately with controlled, drop-by-drop dosing.

⚗️
Highly Concentrated Formula

Controlled, efficient adjustments mean less product needed to hit the target range.

🔓
Prevents High-pH Lockout

Maintains the ideal pH range for maximum nutrient availability and plant performance.

💧
Fully Soluble & System-Safe

Delivers reliable fertigation performance across fertigation systems and reservoirs.

🌱
Works With Any Medium

Compatible with coco, hydro, and soil, and works with all Drip Hydro nutrients and additives like Drip Hydro Cal Mag.

Specifications

Specification Value
Category pH Adjuster
Base Chemistry Phosphoric Acid
Use Rate 0.25-1 mL at a time until desired pH is reached
System Use Fertigation, Batch Tanks, Hand-Mixed Reservoirs
Compatibility Coco, Hydro, Soil
Use Window All Stages of Plant Growth
Available Sizes Quart, 1 Gallon, 55 Gallon

Support & Manuals

Frequently Asked Questions

What is Drip Hydro pH Down used for?+

pH Down is a concentrated buffer used to lower the pH of irrigation water or a mixed-nutrient solution to support optimal nutrient absorption.

How much pH Down should I use?+

Dilute 0.25-1 mL at a time and test until you reach your desired pH level, since the concentrated formula moves pH quickly.

What is pH Down made from?+

pH Down is formulated with phosphoric acid as its base chemistry.

Can I use pH Down with any growing medium?+

Yes, pH Down is compatible with coco, hydro, and soil, and works with all Drip Hydro nutrients, including Drip Hydro Shock to keep irrigation lines clean.

Why does a high pH cause problems for plants?+

When pH drifts too high, nutrients can become locked out and unavailable to the plant, slowing growth and reducing overall performance.

Can I use pH Down at any stage of plant growth?+

Yes, pH Down is designed for use throughout all stages of plant growth in fertigation systems, batch tanks, and hand-mixed reservoirs.

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Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

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