TrueFlo™ Irrigation Line Cleaner

TrueFlo™ Irrigation Line Cleaner is a hydroponic system maintenance product designed to clean and maintain irrigation lines, emitters, reservoirs, trays, pumps, injectors, and dosers. Powered by hypochlorous acid, TrueFlo helps combat scale, mineral deposits, and organic buildup so irrigation systems keep flowing consistently.

Use it as part of routine preventive maintenance during a crop cycle or as a turnaround reset between crops. When used at recommended rates, TrueFlo is safe for plants and easy to integrate into hydroponic and liquid-feed programs.

Use TrueFlo according to label directions and your facility SOPs.

For routine use with plants, dose TrueFlo into the irrigation or nutrient solution at the recommended rate. Best practice is to add TrueFlo after pH adjustment to help prevent hypochlorite fallout. Mix thoroughly, then verify pH and EC before irrigating.

For turnaround resets, line shocks, or surface cleaning, follow the higher label-listed rates and application instructions. Circulate or soak as directed, then flush with fresh water before returning the system to production.

TrueFlo can be used in direct-inject systems, batch tanks, day tanks, distribution lines, reservoirs, trays, pumps, emitters, and injector or doser loops.

Irrigation buildup can quietly reduce crop performance. Scale, minerals, biofilm, and organic residues can restrict lines, clog emitters, disrupt injector performance, and create uneven delivery across the crop.

TrueFlo helps growers protect the consistency of their irrigation system. Cleaner lines and emitters support more uniform flow, more predictable fertigation, and fewer maintenance surprises. That matters because even small differences in water and nutrient delivery can create uneven plant growth, inconsistent crop response, and unnecessary labor.

For commercial facilities and serious growers, TrueFlo turns line cleaning into a simple, repeatable maintenance step instead of a reactive emergency.

Product guide

How to use this product

Review usage guidance, compatibility notes, and grower tips for this product.

Product Role

TrueFlo — What It Does

🏭 TrueFlo
Brand: General Hydroponics
TrueFlo™ — Irrigation Line Cleaner
Link to Purchase

Usage Guide

TrueFlo — How to Use

TrueFlo Irrigation
Line Cleaner™
As an cleaning agent, HOCl will
react with and oxidize other
compounds (organic or
inorganic) in the nutrient
solution.
Important: Carefully consider your rate
selection relative to the amount of
organic or inorganic material in the
nutrient solution.
Best practice: Add TrueFlo to the nutrient
solution after pH adjustment to prevent
hypochlorite fallout.
Direct Inject
(with plants*):
Apply 3-9
mL/gal
(0.2-0.66 ppm)
See reverse
side for ppm
details
Line Shock
(At Reset):
Apply 14-203
mL/gal
(1-15 ppm)
Surface
Cleaning:
Use 200-280
mL/gal
(15-20 ppm)
If using running a high EC feed or
supplements containing humics,
microbes, aminos, seaweed, or
carbohydrates it is recommended to
apply at 5 - 9 mL/gal to account for
oxidation reaction to organic material.
TrueFlo (HOCl) is most effective within a pH range of 4 to
6, maintaining its molecular form.
Diluted, TrueFlo has a shorter shelf life (days to a week);

Grower Benefits

TrueFlo — Key Benefits

● Combats scale, mineral & organic buildup to help restore uniform flow and
system reliability.
● Safe for plants* and compatible with lines, emitters, reservoirs, trays, pumps,
injectors/dosers—one product for the whole system. *At recommended usages.
● Resets equipment for a successful crop; ideal between runs or as part of a
preventive SOP.
● Commercial-grade maintenance with simple use directions and document
support.

Safety First

TrueFlo — Resources & Safety

Store tightly sealed in a cool, dry place away from direct sunlight and extreme temperatures. Follow the product label and SDS for handling, PPE, storage, and disposal.
Resource links to include on the PDP: Safety Data Sheet, product label, and any feed chart or usage guide referenced for this product.

Support

Frequently Asked Questions

What is the role of TrueFlo in this liquid system?

TrueFlo is integrated into the daily feed to automate maintenance, mitigating buildup within plumbing and batch tanks, which reduces the labor associated with line cleaning and improves operational reliability.

How does TrueFlo protect irrigation lines when using FUL+?

Because FUL+ is a complex, carbon-based nutrient source, it naturally introduces the risk of excessive organic buildup which can lead to drip emitter failure. TrueFlo protects irrigation lines by serving as an automated maintenance tool powered by Hypochlorous Acid (HOCl).When integrated into your daily feed, TrueFlo works in the following ways to protect your system:

  • Oxidizing Buildup: The HOCl acts as an active cleaning agent that reacts with and oxidizes organic and inorganic compounds in the nutrient solution.
  • Preventing Clogs: This chemical reaction proactively breaks down and combats scale, mineral deposits, and organic gunk before they can accumulate.
  • Automated System Hygiene: By keeping lines, emitters, trays, pumps, and batch tanks clear, TrueFlo acts as an insurance policy for your infrastructure. It allows you to run high-performance, resin-driving carbon inputs like FUL+ without sacrificing system cleanliness or requiring your team to manually clean the plumbing.
What is TrueFlo™ and what is its primary chemistry and purpose?

TrueFlo™ is a plant-safe 0.028% Hypochlorous Acid (HOCl) system-maintenance solution. It is engineered to clean and maintain commercial irrigation infrastructure—including lines, emitters, reservoirs, trays, pumps, and injectors/dosers—by continuously combating mineral scale, salts, and organic biological films so your delivery networks remain clean and fully functional.

What are the recommended dilution rates for continuous plant-safe fertigation versus system shock resets?

TrueFlo™ features versatile, multi-tier application rates depending on your system's operational needs: Direct Injection (with plants present): Apply at a continuous rate of 3 to 9 mL per gallon of water (delivering 0.2 to 0.66 ppm of active HOCl). Line Shock (At Reset/Between Runs): Apply an aggressive dose of 14 to 203 mL per gallon (1 to 15 ppm) to sanitize and clear lines when no plants are connected. Surface Cleaning: Use 200 to 280 mL per gallon (15 to 20 ppm) to scrub down benches, trays, and non-porous facility surfaces. ◦

How does the choice of fertilizer program and organic supplements affect the required TrueFlo™ dosing rate?

Because hypochlorous acid is an active oxidizer, it reacts with organic materials in your reservoir, meaning you must scale your dosage to prevent the HOCl from being depleted before it cleans your pipes: Standard Mineral Fertilizers: Use 3 mL per gallon (0.02 ppm). High EC Mineral Programs: Use 5 mL per gallon (0.33 ppm). Humic, Fulvic, Microbe, or Seaweed Supplements: Scale up to 5 to 7 mL per gallon (0.33 to 0.47 ppm). Amino Acid Supplements: Scale up to 7 to 9 mL per gallon (0.47 to 0.66 ppm). Carbohydrate Supplements (e.g., sugars): Use 9 mL per gallon (0.66 ppm) to account for rapid oxidation. ◦

When mixing a reservoir, what is the correct sequence for adding TrueFlo™ to prevent mineral lockout or fallout?

To prevent chemical reactions and keep your solution stable, you should always add TrueFlo™ to your nutrient solution after pH adjustment. Adding it prior to pH adjustment can cause hypochlorite fallout. For maximum efficiency, ensure your system maintains a pH range of 4 to 6, which is the optimal window where HOCl remains in its highly active molecular form.

Why is TrueFlo™ not offered in 275-gallon clear totes, and how should it be stored?

Active Hypochlorous Acid is extremely sensitive to light and UV exposure, which causes the molecular structure to rapidly degrade and lose its sanitizing potency. Clear plastic 275-gallon totes do not provide a sufficient barrier to block light. Therefore, TrueFlo™ must be packaged and stored in dark, opaque containers. Keep concentrated bottles sealed, upright, in a cool, dry place out of direct sunlight.

What is the expected shelf life of TrueFlo™ in concentrate versus diluted working solutions?

Unopened concentrate bottles of TrueFlo™ maintain full potency for approximately 1 to 2 years when stored in a cool, dark place. Once opened, it should be used within a single growing season. However, once diluted into a working reservoir or stock tank, its shelf life degrades rapidly to only a few days to a week, especially when exposed to warm temperatures or UV light.

Is TrueFlo™ safe to run with live plants, and what hardware materials is it compatible with?

Yes, TrueFlo™ is completely safe for plants when used at the recommended direct-injection rates (3 to 9 mL/gal). It is fully compatible with standard irrigation hardware, including drip lines, emitters, day tanks, trays, pumps, and automated fertilizer injectors (such as Dosatron panels). Note that concentrates cause skin and eye irritation, so operators must always wear appropriate PPE during stock preparation.

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